Every reader of esoteric literature knows the word “CHAKRA” - the word at least - if not the thing signified. Unless the reader is also a seer he has no direct apprehension of its meaning; and since a chakra is an organ in the Body of Light, any comparison with a material object is inadequate”.   Ithell Colquhoun,  

De Astris Interioribus

Eastern & Western CHAKRAS