Sri Aurobindo
Letters of Sri Aurobindo
Volume I - Part 4
The faith is there, not in your mind, not in your vital, but in your psychic being. It was this faith that flung you out of the world and brought you to Pondicherry; it is this faith that keeps 
you to what the soul wills and refuses to go back on what it has decided. Even the mind’s questionings have been a groping after some justification by which it can get an excuse for believing in spite of its difficulties. The vital’s eagerness and its vairagya are shadows of this faith, forms which it has taken in order to keep the vital from giving up in spite of the pressure of despondency and struggle. Even in the mind and vital of the man of strongest mental and vital faith there are periods when the knowledge in the psychic gets covered up – but it persists behind the veil. In you the eclipse has been strong and long because, owing to certain mental and vital formations, the assent of the mind and vital got clouded over and could only take negative forms. But there is always the knowledge or intuition in the soul that started you on the way. I have been pressing on you the need of faith because the assent has again to take a positive form so as to give free way to the Divine Force; but the persistent drive in the soul (which is a hidden and externally suppressed faith) is itself sufficient to warrant the expectation of the Grace to come.