Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 1
It is the thoughts of the outer mind that have to be refused, the suggestions and ideas that end by disturbing the sadhana. There are also a number of thoughts of all kinds that have no interest, but which the mind is accustomed to allow to come as a habit, mechanically,– these sometimes come up when one tries to be quiet. They must be allowed to pass away without attending to them until they run down and the mind becomes still; to struggle with them and try to stop them is no use, there must be only a quiet rejection. On the other hand if thoughts come up from within, from the psychic, thoughts of the Mother, of divine love and joy, perceptions of truth etc., these of course must be permitted, as they help to make the psychic active.