"It is easier to leave a circle than to enter it.
The emphasis is on the hip movement whether front or back.
The difficulty is to maintain the position without shifting the centre.
To analyze and understand the above situation is to do with movement and not with a stationary posture.
Advancing and retreating by turning sideways in line with the shoulders, one is capable of turning like a millstone, fast or slow, as if whirling like a dragon in the clouds or sensing the approach of a fierce tiger.
From this, one can learn the usage of the movement of the upper torso.
Through long practice, such movement will become natural."
- Yang Family Old Manual, The Coil Incense Kung
"The East Asian Dragons are often associated with water, rain, vapors, fog, springs, streams, waterfalls, rivers, swamps, lakes, and the ocean. Water can take many shapes and states, and Dragons are shape shifters and linked with transformation, appearing and disappearing, changing into something new. Water is found in three states, depending upon the surrounding temperature: a solid (ice, snow), a fluid (flowing liquid), and a gas (fog, vapor, steam). Since rainfall is often accompanied by thunder and lightening (thunderstorms and typhoons), the Dragon is sometimes associated with fire; and, since hot water and steam are major sources of energy in human culture, this further links the Dragon with the essential energy of Fire. The Dragon is thus linked with the chemical and alchemical transformative properties of two of the essential Elements, both Water and Fire. Dragons are generally benign or helpful to humans in East Asia, but their powers can also be destructive (e.g., flooding, tsunami, typhoon, lightening, steam, drowning, etc.). There are both male and female Dragons, kinds or species of Dragons, Dragons of different colors and sizes, and mostly good but some evil Dragons. Some Dragons can fly, some cannot fly; most live in or near water, a few on land. The body of a Dragon combines features from many animals, representing the many possibilities for existential presence. The Dragon in the East has serpentine, snake, or eel like movement qualities: twisting, spiraling, sliding, circling, swimming, undulating, flowing freely like water." [See: The Dragon in China and Japan by Marinus De Visser, 1913]
The emphasis is on the hip movement whether front or back.
The difficulty is to maintain the position without shifting the centre.
To analyze and understand the above situation is to do with movement and not with a stationary posture.
Advancing and retreating by turning sideways in line with the shoulders, one is capable of turning like a millstone, fast or slow, as if whirling like a dragon in the clouds or sensing the approach of a fierce tiger.
From this, one can learn the usage of the movement of the upper torso.
Through long practice, such movement will become natural."
- Yang Family Old Manual, The Coil Incense Kung
"The East Asian Dragons are often associated with water, rain, vapors, fog, springs, streams, waterfalls, rivers, swamps, lakes, and the ocean. Water can take many shapes and states, and Dragons are shape shifters and linked with transformation, appearing and disappearing, changing into something new. Water is found in three states, depending upon the surrounding temperature: a solid (ice, snow), a fluid (flowing liquid), and a gas (fog, vapor, steam). Since rainfall is often accompanied by thunder and lightening (thunderstorms and typhoons), the Dragon is sometimes associated with fire; and, since hot water and steam are major sources of energy in human culture, this further links the Dragon with the essential energy of Fire. The Dragon is thus linked with the chemical and alchemical transformative properties of two of the essential Elements, both Water and Fire. Dragons are generally benign or helpful to humans in East Asia, but their powers can also be destructive (e.g., flooding, tsunami, typhoon, lightening, steam, drowning, etc.). There are both male and female Dragons, kinds or species of Dragons, Dragons of different colors and sizes, and mostly good but some evil Dragons. Some Dragons can fly, some cannot fly; most live in or near water, a few on land. The body of a Dragon combines features from many animals, representing the many possibilities for existential presence. The Dragon in the East has serpentine, snake, or eel like movement qualities: twisting, spiraling, sliding, circling, swimming, undulating, flowing freely like water." [See: The Dragon in China and Japan by Marinus De Visser, 1913]
Dragon Chi Kung
features exercises that involve twisting, turning, screwing,
spiraling, curving, wiggling, undulating, spinning, sinking down and
rising up, swimming, circling, swinging, or twining movements are often
associated with snakes, serpents and dragons. There are many Qigong
sets and specific Qigong movements that have been called "Dragon"
forms, sets, or exercises. Baguazhang martial arts feature much twisting, turning and circling; and, also include many "Dragon" sets and movements. Silk Reeling exercises in Chen Style Taijiquan include twisting, twining, circling, and screwing kinds of movements.
Instructional DVD, 2009. 2 Discs, 300 Minutes. VSCL. 
.
By Laurie Sanford and Nancy Forstbauer. Hatherleigh Press, 2014. 112
pages. ISBN: 978-1578264483. 
By Grandmaster Yang Jwing Ming. YMAA Publications Center, 3rd Edition,
2005. Index, 2014 pages. ISBN: 978-1594390333. VSCL. 
.
By Susan Blum, MD and MPH; and Michele Bender. Foreword by Mark Hyman,
M.D.. Scribner, 2013. 384 pages. ISBN: 978-1451694970.
VSCL. 
