If there is one word that encapsulates the mood of a warrior, it is, for me, the word impeccable. It literally means without sin or without sinning. Sin, it can be argued, boils down to profligacy, prodigality, wasting energy, and since potential is also energetic, an opportunity squandered also counts as wasteful. We can extend this argument and say that to allow myself to be without available spirit is also wanton because without spirit I can never be immediate or creative enough to make the most of what life presents. This is why the fundamental instruction in Taiji is Mind In Dantien – it doesn't just keep me focused and concentrated, it wakes my spirit up and makes it keen.