In the Hindu chakra system (of which you can see gaudy coloured lithographs in the yogic circles of India) the lowest and first centre deals with survival, the second with sex, the third with power. Thus the first three are animalistic, egoistic, and materialistic; but when we come to the fourth there is a crossing over, for this has to do with spiritualization. The fifth is connected with surrender of the ego, and the sixth with the discrimination between truth and falsity, between reality and appearance. The seventh is the last and highest and is linked with enlightenment, liberation, realization--call it what you will. But all this applies to the particular yoga called kundalini yoga. Philosophy is not concerned with it, because it is not directly concerned with the awakening of kundalini.
-- Notebooks Category 5: The Body > Chapter 8 : Kundalini > # 11
