Sri Aurobindo
Letters of Sri Aurobindo
Volume I - Part 2
“Psychic” in the sense in which it is used commonly by people has no definite meaning – it is applied to anything non-physical or supraphysical. In the language of our Yoga it refers always to 
the inner soul. Therefore the use of the words “psychic significance” is incorrect here. One can say “occult significance” or “symbolic significance” or “inner significance”. “Psychic significance” we can say only of experiences belonging to the psychic as opposed to the mental, vital and physical planes.