QUOTE (Yun @ Jan 23 2008, 11:09 AM)

I think YZB was too impatient with you, and that is largely a problem of different worldviews. Your worldview revolves around yin/yang and qi, while YZB's worldview is an essentially materialist and 'scientific' one (not unlike what the PRC officially espouses, despite the fact that yin/yang and qi concepts were never truly rejected by the people). I personally incline towards YZB's approach when it comes to warfare, i.e. that qi plays little or no role in determining the outcome of a battle or effectivenes of an army, but I am aware that this approach was not traditionally the norm in Chinese military thought or martial arts until the 20th century.
Agreed, however it is also important to understand that these world/cultural views are not necessarily antagonistic nor is one 'right' or the other 'wrong'. All evolved to allow their users to relate to the world in a way that made sense to them.
Traditionally western sciences reject other sciences as 'primitive' and based on mysticism and therefore incorrect. They fail to take into consideration that many of the applications of those belief systems have practical and survivalist value to the original society they belong to. The Bushmen uses mysticism to locate sources of water (looked from western eyes it is a different story), the indian use Chakra to explain about energies within their body allowing their mystics to perform feats that can still astound a western audience, the chinese use the theory of qi to explain about and cure illnesses of the body (they worked, otherwise it would not have lasted for so long), native Americans used their herbs for healing and other uses, mysticism involved as well but no less effective, even the Greeks, supposedly the originators of western civilisation, had their view on how the body works and the various humours that affect their body. They all worked in their own fashion and allowed those cultures to survive. Were they all absolutely 'correct'? No, but then neither is Newton's Three Laws of motion which is not completely correct but is good enough for us to calculate how to get a man to the Moon.
When writing about such matters our use of phrases reveals interesting concepts in our world views. Take for example the use of the word, 'supernatural'. What does it actually mean? Where does the natural end, and the supernatural begin? This term as it is currently used is a specific invention of post renaissance Europe when the Age of Reason came about, and free-thinkers and atheism found resurgence, and the 'scientific' method came to the fore. it then became necessary to classify some matters as 'supernatural' with the idea being that it is beyond the province of 'science' (the science of those rational men that is) To the Chinese when they use 'qi', it is no more supernatural than gravity. It is part of how they see and relate to the world.
Having digressed right from the start let's sort of get back to topic. While I don't understand LYY's explanation, 'qi' when used in describing the battlefield and formations can easily be thought of as how fluid and flowing they are or where the strong 'qi' or weak 'qi' is. Spatial awareness is an important concept on the battlefield, you have to understand where your troops are, might be, or will be if the enemy is here, there or forcing down on top of you. A formation with good 'qi' may thus have the attributes of good communication channels, strategic spaces for changes and the troops don't get into each other's way, etc.
I personally don't (and can't) see battlefields or formations in this manner but I think it would be interesting and perhaps we can even learn something of how the ancients think if we can try to envision it from their point of view.