What is the purpose of the society?2021-09-23T06:41:29+00:00

The Swedish Yau Kung Mun & Wun Yuen Gong Research Society was created by a small group of veteran martial artists in order to:

  • Research and preserve Shaolin Yau Kung Mun (Shaolin Style of Flexible Power) with an emphasis on the fighting methods and inner training of the Flexible Power 18 Double Pushing Palms internal system.
  • Research and preserve Wutaishan Wun Yuen Yat Hei Jeung (Mount Wutai Primordial Chaos One Qi Palm), aka Wun Yuen Gong, with an emphasis on the fighting methods, internal alchemy and the philosophical roots of the art.
  • Further develop and continuously adapt the VIDAR (Violent Intent Direct Aggressive Response) and Gryphon personal security training programs to the ever-changing demands of the society in which we live.
  • Note that we are NOT a teaching organization. Individual society members are free to teach at their discretion but this is not the purpose of the society itself.
  • The work of our society is dedicated to the memory of the late Grandmaster Cornelius Coelho. We have not forgotten. We will never forget. 週天要義混元訣.
What is Yau Kung Mun?2021-09-23T05:52:30+00:00


Yau Kung Mun is a rare Chinese martial art characterized by its aggressive tactics and effective fighting techniques, including the use of the Phoenix Eye Fist and short range shock power. The history of Yau Kung Mun dates back to the Tang dynasty (618-907 AD) and the Shaolin temple in the Honan province, where the system was created by the Buddhist monk Ding Yang. It consists of both external Kung Fu with techniques closely related to Bak Mei (White Eyebrow style) and an internal Shaolin Kung Fu system known as Siu Lam Yau Kung Sup Bat Seung Toi Jeung or “Shaolin Flexible Power Eighteen Double Pushing Palm”.

Yau Kung Mun Kung Fu

The Yau Kung Mun kung fu system offers training in all aspects of the Chinese martial arts tradition including self defence, Qi Gong, meditation and Chinese medicine.

The external Yau Kung Mun system teaches fighting skills typical of Hakka kung fu, such as short range explosive power, use of the phoenix eye fist and a very aggressive mindset.

The internal Yau Kung Mun system contains the full spectrum of internal training, from quiet meditation and soft Qigong to physically demanding power training methods such as practising movements with a heavy ball. Students also learn the long internal form called Siu Lam Yau Kung Sup Bat Seung Toi Jeung. This form is often considered the “treasure” of the Yau Kung Mun system. It contains all the fighting and healing methods of Yau Kung Mun hidden inside one long form divided into three sections.

The initial stages of the Yau Kung Mun system focus on developing the body skill of the practitioner. This is primarily done by practising solo drills, hitting pads, heavy ball exercises and numerous two-person methods designed to teach the practitioner to use a very relaxed and penetrating type of power. In addition to the soft training, students also learn the hard “kung” power aspect of the system. They condition their bodies for fighting using a variety of methods, including iron body, iron hand, iron bridge, iron claw and many two-person conditioning exercises. External and internal dit dar medicines together with specific Qi Gong exercises help with recovery from the hard conditioning. Through this training practitioners learn to balance soft and hard energy to create our characteristic “Yau Kung” or “flexible power”.

In Yau Kung Mun, every part of the body is a weapon. Common fighting techniques include a variety of hand strikes, kicks, elbows, knees, headbutts, joint locks and breaks, take-downs and wrestling techniques. Students learn to apply their skills through numerous partner drills and free sparring. Whole body sensitivity exercises are teach the student to react to their opponent’s slightest movement while relying on proper body mechanics and flexible power instead of brute “dead” force. Sparring is done both in a semi-contact fashion without gloves allowing for a larger range of techniques and full-contact with gloves and mouth guards so that the students can learn to take a hit and keep going while getting their reflexes and mindset ready for real fighting.

Yau Kung Mun practitioners also study a variety of weapons such as the long pole, single and double daggers and broadsword. While being part of the tradition, the weapons also have practical training benefits for the modern day martial artist. For instance, the long pole, when practiced with a heavy wooden or metal pole, develops coordinated whole body power while the daggers enhance body awareness and quick reflexes.

Our traditional Yau Kung Mun originally comes from the Australian branch of the art but these days our primary focus is on researching and refining the internal art. The external fighting skills are still taught in a streamlined fashion as part of the VIDAR COMBATIVES training program.

What is Wun Yuen Yat Hei Jeung?2021-09-23T05:52:35+00:00

Wun Yuen Yat Hei Jeung (Primordial Chaos One Qi Palm, sometimes called Wun Yuen Gong) is a Daoist internal martial art which includes Qi Gong exercises, meditation, conditioning, push-hands, self-defence, free sparring, tui na and the 64-section long form.

Wun Yuen Yat Hei means Primordial First Qi, or Original First Breath, which refers to the Primordial Chaos that exists before the duality of Yin and Yang is formed.

The system was founded in the Han Dynasty (206 BC – 220 AD) by two senior disciples of the legendary sage Lao Tzu, named Ngai Bak Yeung and Chiu Chi, who created the art in order to attain the Six Unions. The first Five Unions focus on coordination of the Body, Heart, Intent, Qi, Spirit and Movement. The Sixth Union combines Movement with Void, which can also be described as natural coordination of the previous Five Unions without the need to actively focus on them. This is the Daoist principle of Wu Wei or non-doing, where action becomes spontaneous and effortless.

The last true Grandmaster of the Wun Yuen Yat Hei Jeung system was the late Lo Chi Wun (Hong Kong) and the last true Gatekeeper was his student Grandmaster Cornelius Coelho (Australia).

Who are the founders of the society?2021-09-23T05:52:41+00:00

The Swedish Yau Kung Mun & Wun Yuen Gong Research Society was founded by Christer Wretfors Sifu and Christer Lundenius in 2019.

Who is Christer Wretfors?2021-09-23T05:52:53+00:00

Christer Wretfors Sifu has studied traditional martial arts since 1986 and modern combatives since 1994. He received his first instructor’s title in 1995 and opened his first class teaching internal martial arts, self-defence and Qigong in 1997.

His background includes extensive training in several traditional Chinese martial arts, including Yau Kung Mun, Wun Yuen Yat Hei Jeung, Bak Mei, Wing Chun and Taijiquan. He’s the creator of the VIDAR Combatives and Gryphon Personal Security training programs.

He currently lives in Hässleholm, Sweden, where he sometimes teaches private classes and seminars. Enrollment is currently closed to new students due to the pandemic.

Who is Christer Lundenius?2021-09-23T05:52:58+00:00

Christer Lundenius is a life-long martial artist and the most senior student of Christer Wretfors Sifu, having trained with him since the first class opened in Alnarp in 1997. He has also been a practitioner of Yau Kung Mun, Wun Yuen Yat Hei Jeung and Bak Mei for more than fifteen years. He’s the only person authorized by Wretfors Sifu to teach the VIDAR training program. He also has a training background in several other arts, including Kenpo, Aikido and Taijiquan. He’s also been a yoga practitioner for several decades.

Christer currently lives and represents our arts in Gothenburg, Sweden.

Why is your self-defence program named VIDAR?2021-09-23T05:53:06+00:00

“The wolf shall fell the father of men,
And this shall Vithar avenge;
The terrible jaws shall he tear apart,
And so the wolf shall he slay.” / Vafthruthnismol, stanza 53

One of the lesser known gods of the Norse mythology is Odin’s son Vidar (sometimes also spelled Vidarr, Vithar etc). Known primarily as a god of vengeance, he only gets a few mentions in the Poetic Edda. His main claim to fame is slaying the Fenris wolf during Ragnarök after the wolf killed his father. He is said to be one of the strongest gods, almost as powerful as the mighty Thor himself. The VIDAR combatives program is named after him for several reasons, a few of which will be briefly discussed here.

First off, the god Vidar is a powerful symbol representing the vengeful warrior who only uses violence to protect himself and his loved ones. In VIDAR we are not really concerned with “humane” self-defense where the enemy is pampered into submission, so it is important to have a strong moral code to provide guidance for when violence can be considered an acceptable option; in addition to what the law explicitly says, of course.

Also our training program is a Swedish creation and we like the idea of having a name that pays tribute to our Scandinavian heritage.

Additionally, we are firm believers in the 7Ps. The 7Ps are an acronym stating that “Proper Planning and Preparation Prevents Piss-Poor Performance”. In other words, the better prepared you are, the greater your chances when bad things eventually happen. Vidar was well prepared when he slayed Fenris. He even wore a special shoe that he had made for this one occasion. The shoe was reinforced with many thick layers of leather which allowed him to step on the lower jaw of the wolf and then rip it open. Without the shoe, he might have met the same fate as his father Odin. This story shows the importance of the 7Ps and how they have been observed by warriors throughout the ages.

Vidar is also known as the quiet god. In other words, don’t brag about your training, don’t show off in front of people and don’t get tricked into fighting if staying silent and walking away is an option.

Last but not least, VIDAR works beautifully as an acronym for the mindset which is instilled throughout the VIDAR program; Violent Intent Direct Aggressive Response. We believe that developing your mindset is the most important aspect of self-protection training. You can have the greatest physique in the world, with absolutely flawless fighting technique, but if you aren’t mentally prepared to deal with extreme aggression and violence, then you will still become just another “+1” when the yearly “victims of violent crime” statistics are compiled.

What is the VIDAR training program like?2021-09-23T05:53:10+00:00

VIDAR CORE is our foundation training program. It is very intense and usually taught during two consecutive days (minimum 10 hours of training each day). VIDAR CORE provides a solid foundation in practical self-protection skills.

  • Security awareness, the 7 Ps, identifying and avoiding threats.
  • Fundamental de-escalation skills, body language, verbal commands, common behavioural patterns.
  • Natural reactions – working with your instincts, not against them.
  • Core movements – fundamental fighting techniques.
  • Power generation – developing explosive, knockout power.
  • Line, Circle, Gate – identifying and intercepting attacks, the interview stance, Maximum Buffer Theory.
  • Reaction drills – conditioned reflexes, trained triggers, peripheral vision.
  • Auto-kinematics – body manipulations and targeting weak points.
  • Mindset – developing focused aggression and dispassion.
  • Practical self-protection – dealing with the most common attacks.
  • Mass attack – fighting multiple enemies.
  • Realistic training scenarios – pressure testing while roleplaying various self-defense situations using all skills learned.
  • The aftermath – checking for injuries and basic first aid, legal considerations.

VIDAR EDGE is our fundamental edged weapons training program. Minimum time required is two full days of training (10 hrs per day).

Prerequisite: VIDAR CORE.

  • Repetition of VIDAR CORE – basic unarmed combatives.
  • Combative blade I – fundamental edged weapon techniques.
  • Counter-blade – unarmed survival against edged weapons.

VIDAR IMPROV & GUN teaches improvised weapons, gun disarms and team work. Minimum time required is one full day of training (10 hrs).

Prerequisites: VIDAR CORE and VIDAR EDGE.

  • Repetition of CORE – basic unarmed combatives.
  • Repetition of EDGE – combative blade and counter-blade.
  • IMPROV – improvised weapon techniques using pens, flashlights, keys and other items.
  • GUN – fundamental tactics and firearm disarms, active shooter situation survival.
  • Team work – introduction to assisting third person during violent situations.

The VIDAR CONTINUUM is for advanced students who have completed our fundamental training courses. At this point, you are free to explore all our training methods, including advanced self-protection training and other supplemental training programs such as VIDAR DRIVE and VIDAR TRAVEL. The traditional martial arts that provide the powerful engine behind our VIDAR programs are also made available to dedicated students.


  • Advanced unarmed and armed combatives.
  • VIDAR DRIVE, defensive driving skills and vehicle safety.
  • VIDAR TRAVEL, security awareness and planning for frequent travellers.
  • VIDAR HOME, securing and defending your own “castle”.
  • Traditional Yau Kung Mun and Bak Mei Kung Fu.
  • Traditional Wun Yuen Yat Hei Jeung.
Can you tell me more about the VIDAR training philosophy?2021-09-23T05:53:15+00:00

The most important thing when developing functional unarmed fighting skills is this…it’s not what you train but how you train! In other words, doing realistic training and having the right mindset is more important than knowing thirty different joint locks or having a funky skull logo t-shirt to show the world that you are training in the latest over-hyped Supah-Killah™ secret-military-turned-civilan system. It is unfortunately still quite common, especially in our fairly civilized part of the world, to see an over-focus on physical techniques while the psychological aspect of dealing with brutal violence is overlooked. I still cringe when I think of a conversation I had with a gentleman who was very insistent that all you really need in order to effectively defend yourself is knowledge of how to apply a finger lock and nothing else.

What we are going to briefly discuss in this FAQ article are two important basic components of any real self-protection program. These are your toolbox and your mindset. What will be discussed also needs to be understood in the right context, that of a violent encounter which has already started. We are not talking about the other side of the coin, training your awareness and strategies for avoiding violent situations, at this time.

Your personal toolbox contains all the combative principles and techniques that you train on a regular basis. It needs to be very slimmed down and adaptable. It has to work in high stress situations and should provide you with a very simple set of guidelines and techniques that can be used in a myriad of different situations including one or more aggressors, armed or unarmed, different environments, different levels on intent behind the initial attack, if you are alone or have to protect others as well etc.

Simplicity is key because it will reduce your response time, think of applying a modified version of the well-known OODA loop (Observe, Orient, Decide, Act) on a very personal and up-close level. First you need to recognize, at a sub-conscious level, that you are being attacked, and then your nervous system has to trigger the beginning of a counter-attack and finally you must direct this counter-attack as you start to categorize the specific attack that is coming at you. Is it aimed high or low, hand or foot, left or right side, linear or curved? You should be able recognize this instinctively. These are all triggered reflex actions, there isn’t any conscious train-of-thought involved during your initial response. The techniques themselves need to be very few in number, rely on gross motor skills and be based on your natural reflexes while still adaptable enough that you can use them to counter anything the aggressor might throw at you.

In the VIDAR training courses, we focus on developing body methods over specific techniques. These body methods provides the entire physical framework for every move we make against the aggressor and provide both full body power generation and natural shielding against incoming attacks. The methods are simple enough to be learned by anyone and perfectly usable while wearing heavy gear or clothing. The same techniques used for our empty hand fighting are also used with a knife, pen, keys and other improvised weapons with only minor modifications since they are still driven by the same core body methods.

For those who work in close protection or other security roles, it is worth considering that many military fighting techniques are inappropriate for use in a low risk, civilian environment due to their violent nature. You are not a soldier on the battlefield but a security professional and appearing on a tabloid front page with your elbow slamming into an overly enthusiastic fan’s neck while your principal looks on in horror would, in most cases, not be considered a successful publicity stunt. You are always protecting the image of your principal, your employer and ultimately yourself. On the opposite side of the spectrum, if you are operating in a hostile environment, where your standard toolbox includes an assault rifle and a semi-automatic, that short range elbow to the neck probably won’t do you much good either. So your personal toolbox always needs to be tailored to the specific role that you are serving in.

Also on the topic of weapons, if you carry a sidearm, make sure to integrate your weapons training with your unarmed combatives. This goes for weapons retention drills as well as weapons access and usage in conjunction with secondary weapons and empty hand skills at short distances. Incorporate training sessions wearing your standard working clothes and equipment. Civilians should train in regular clothes too because you need to be comfortable applying your self-protection skills in your everyday environment. Don’t allow the training drills to become a routine where you always do the same action over and over in the exact same manner, in the same environment, starting in the same spot on the floor. Mix things up to keep it interesting. And never ever just hand your training partner his weapon back after you’ve managed to disarm him. If he wants it, let him try to take it back!

We do not teach the use of straight punches during our foundation courses. First of all, it is very easy to injure your hands this way and while it might be very macho to say that you can keep on fighting with a “boxer’s fracture”, it is also somewhat silly since you rely on your hands during your work and everyday life. I’ve fractured my fist twice during my martial arts training and last time it took six months for it to become pain free and almost a year before the fingers were moving normally again, no fun at all. So we teach palm strikes instead, they are just as effective as closed fists and the risk of damaging your hand is much lower. Open hand strikes also look less violent in the eyes of the public (and in any spying paparazzi lenses). Never forget that someone is always watching your every move, especially if you are working. Going back to the gentleman with the finger locking skills, while joint locks and take downs are great to have in the toolbox, we always teach our participants to soften the aggressor up first before attempting to apply them. There is a huge difference between trying to control a training partner, even if he is resisting, compared to actually restraining someone who is hell-bent on ripping your face off with his teeth. I am sure some of you guys and girls out there can do it but most of us will get torn to bits if we try.

There are a few basic exceptions to the “hit first, lock later” tactic mentioned above. The first one is if you are unfortunate enough to be in a profession where you are absolutely forbidden to strike or injure the other person. In that case, make sure to perfect your grappling skills and maintain excellent physical conditioning but also spend extra time on team work drills with your colleagues. In fact, the second exception is if you have team-mates assisting you, although sometimes you still need to pre-soften the aggressor up before restraining him. The third exception is probably the most important one and it is if the individual has a firearm pointed in anyone’s general direction. In that case, we seek to control the firearm first. Never hit the hand or forearm that is holding the weapon, this can disturb the antagonistic relationship between the muscles in his arm causing an accidental discharge.

Violence is ugly and normal people tend to experience strong fear during a violent confrontation. Proper training creates mental triggers that, in addition to initiating our physical response, also help us go into a fighting state of mind, as opposed to flee or freeze. We prefer to use intense scenario-based training methods where the participants are forced to go beyond their normal comfort zones and fatigue barriers, this helps them get into that mental space where new triggers are easier to install. There is no time to hesitate, doubt or “make your mind up” when an attack occurs. You need to work all that out during training. This is why pressure testing with uncooperative training partners are so important because it gives you confidence in your own abilities and the knowledge that your training will work when you need it the most.

During our courses, we always train the participants to use the overkill principle. From the moment we spring into action, we launch a series of counter-attacks until we perceive that the threat is over. This also requires us to install yet another mental trigger that makes us stop and resume a “normal” state of mind. We need to be able to instantly snap in and out of our fighting mindset in order to make informed decisions about our next course of action. For many people attending our training, this is much harder compared to just entering a combative state of mind alone. Realistic training scenarios that challenge not just the participant’s physical skills but also present them with increasingly difficult tactical problems are quite useful in this case. What overkill does not mean is that we always pound people into the ground until they stop breathing. In some cases, it is just one or two moves until you register that you don’t need to continue and your trigger snaps you back into a normal mental state.

A final note on the mental preparation side of things is that you need to plan for what happens after a violent situation has been dealt with. This includes administering first aid to yourself and others, having a list of contacts who can help you, knowing what to do afterwards and where to go, dealing with law enforcement, legal issues, proper etiquette during court appearances and so on. Remember the seven P’s. Proper Planning and Preparation Prevents Piss Poor Performance. Never leave anything to chance because bad luck usually visits the unprepared first.

How can I join the society? Are there any training opportunities?2021-09-23T06:34:02+00:00

Membership in the The Swedish Yau Kung Mun & Wun Yuen Gong Research Society is for instructors and by personal invitation only. We do not offer any kind of public enrollment process, all members are verified and know each other well in real-life. There are no fees or other costs, members are expected to contribute with their knowledge and time only.

Our old students, going all the way back to the early days in Alnarp, are always welcome to stay in touch, even if it is just to let us know how you are doing in these strange times. Our contact email for old students is: alumni(at)yaukungmun.se

New prospective students who are looking for an instructor can email us with their letter of introduction in order to be put on a waiting list. We will then get back to them if anyone in the society is taking new students. Emails from prospective students must include, at the very least, your name, location, contact info and a short personal introduction including your training background and reasons for wanting to learn our arts. The info needs to be complete and verifiable or we will not bother to reply back. Please note that none of our members offer “online” training. Email your letter to: society(at)yaukungmun.se


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