"While it may be accurate to say that “most people” locate the self in their heads, there may be reason enough to challenge that assumption. It could well be the case that locating consciousness in this way (in the head) is historically recent, and culturally anomolous.
I've just read Shi Ming's book about refinement of consciousness and found similar thoughts in it.
" Here it must be explained that the modern Chinese term 'vital spirit' now refers only to the psychological activity of human consciousness, but its original meaning undoubtedly came from Chinese medical theories about vitality, energy, and spirit. … In its original meaning, the term 'vital spirit' indicates the total combined biological and psychological efficacy of the human body and mind."
" Refinement of consciousness means cultivation of every level of the 'spirit', including all the categories of Chinese medical science relative to the body and mind, especially to the psychological aspect: vitality, spirit, higher and lower souls, mind, attention, will, thought, reflection, and knowledge. It also includes other aspects of the whole spirit, including aspiration, temperament, character, and so on. "
Louis, I also liked what you said about "conscious movement" (zhijue yundong). Continuing to speak about correlation between mind and body I would like to add that in my view "conscious movement" also implies so called "transparent body". I think "transparent body" is another metaphor that very well complements fluid-based metaphor.