Sri Aurobindo
Letters of Sri Aurobindo
11. Visions and Symbols
Fragment ID: 1868
I do not know what you mean by practical sadhana. If one develops the occult faculty and the occult experience and knowledge, these things can be of great use, therefore practical. In themselves they are a part of opening of the inner consciousness and also help to open it further – though they are not indispensable for that.