Quick post here: my mailbag indicates that there may be some terminological confusion out there. I will untangle everything in my forthcoming magnum opus:
Bare Metal Magic: Radical Xingyi Energetics
... book due out in August 2014.
However, just for now, let me try to clarify a few basic points.
My energy concept grid, that applies to all across the board (Xingyiquan, Taijiquan, Life, the Universe, and Everything) is ripped from Xingyiquan Ubermeister Guo Yunshen, who used terms based on traditional Taoist mediation and alchemy theory.
JING (精) bio-physiological essence that is one of the material foundations for the non-material energies which we cultivate in these arts.
QI (氣) the life energy that is derived in part from the JING bio-essence and in part from ingestion of, or contact with, the environment as food, water, air, light, gravity, sound, etc.
SHEN (神) a refined spiritual energy that is in but not of the physical body
XU (虛) a state of pure non-material being
The little tingles and buzzes and warm flushes that everybody feels in the first 15 minutes of any weekend Qi Gong seminar are termed by me: BRUTE QI (Buzz, RUsh, and Tingle Energy). That's the easy stuff. From there, my work is focused on developing more refined forms of JING (勁) martial arts energetic experience, as follows:
MING JING (明勁) The "obvious" or "clear" energy which is experenced as an electric jolt and charge in Xingyiquan, or as the "hard wave" in the slower movements of Taijiquan.
AN JING (暗勁) The "hidden" or "dark" energy that emerges later, after you have some experience of the MING JING. This is experienced as a tsunami "wash" of power in Xingyiquan from foot to fist, and as the "soft wave" of PENG energy in the slower modality of Taijiquan.
HUA JING (化勁) Higher spiritual states that I will give my teacher's directives about in my BMM book (see above)
The confusion arises because in the DVD, I gave a supplemental insight on the basic BENG QUAN practice that allows you to begin to experience the AN JING. That extension to BENG QUAN shown in the DVD is actually just one of 5 total such extension moves for AN JING, which as a whole my teacher termed SHEN JING (滲勁) and which are shown in their entirety on my free Youtube clip.
But notice! That SHEN (滲) is NOT the same as the SHEN (神) 'spirit energy' in Guo Yunshen's concept system above. The spelling is just a coincidental overlap.
The AN JING development exercises which are known as SHEN JING (滲勁) will eventually lead to experience of the SHEN (神) states, but the SHEN JING work per se develops the AN JING (which in turn is precursor to the HUA JING in Guo's system). SHEN JING in the 5 exercies means "infusion of energy" they are a way to convert the MING JING of the Five Elemental Fists into AN JING at the very moment of actual instantion while working the techniques. A very unique system in my experience, I know of nothing comparable because this is DYNAMIC work in the matrix of the Five Fists, not just another variant of Zhan Zhuang static standing, which is a landscape already well covered by Yi Quan. Consider yourself lucky I'm putting this out! :)
Bottom Line: use the 5 SHEN JING (滲勁) extension techniques shown in my Youtube clip to experience and amplify your AN JING (暗勁) power deriving from your Five Elemental Fists (五形) practice.
*PANT* *GASP* Sorry it so confusing but that is just Chinese language stuff. If you read the above carefuly and re-watch my vid clips with all this in mind it should begen to make some sense at least as terminology if not yet as experience.