Faith is a certitude which is not necessarily based on experience and knowledge.
Faith―confidence in the Divine and the unshakable certitude of the Divine’s Victory.
The Mother – Words of the Mother – II: CWM, Vol. 14, p. 79
Faith is the soul’s witness to something not yet manifested, achieved or realised, but which yet the Knower within us, even in the absence of all indications, feels to be true or supremely worth following or achieving. This thing within us can last even when there is no fixed belief in the mind, even when the vital struggles and revolts and refuses….
Sri Aurobindo – Letters on Yoga – II: CWSA, Vol. 29, p. 93
Faith is a general word = śraddhā—the soul’s belief in the Divine’s existence, wisdom, power, love and grace—confidence and trust are aspects of faith and results of it.
Faith—a dynamic entire belief and acceptance.
Belief—intellectual acceptance only.
Conviction—intellectual belief held on what seem to be good reasons.
Reliance—dependence on another for something, based on trust.
Trust—the feeling of sure expectation of another’s help and reliance on his word, character etc.
Confidence—the sense of security that goes with trust.
Sri Aurobindo – Letters on Yoga – II: CWSA, Vol. 29, p. 88
This śraddhā—the English word faith is inadequate to express it—is in reality an influence from the supreme Spirit and its light a message from our supramental being which is calling the lower nature to rise out of its petty present to a great self-becoming and self-exceeding….
Sri Aurobindo – The Synthesis of Yoga – II: CWSA, Vol. 24, p. 774
If you desire only the Divine, there is an absolute certitude that you will reach the Divine. But all these questionings and repinings at each moment because you have not yet reached, only delay and keep an impeding curtain before the heart and the eyes. For at every step when one makes an advance, the opposite forces will throw this doubt like a rope between the legs and stop one short with a stumble—it is their métier to do that. One must not give them that advantage… one must say, “Since I want only the Divine, my success is sure, I have only to walk forward in all confidence and his own hand will be there secretly leading me to him by his own way and at his own time.” That is what you must keep as your constant mantra and it is besides the only logical and reasonable thing to do—for anything else is an irrational self-contradiction of the most glaring kind. Anything else one may doubt but that he who desires only the Divine shall reach the Divine is a certitude much more certain than that two and two make four. That is the faith every sadhak must have in the bottom of his heart, supporting him through every stumble and blow and ordeal.
Sri Aurobindo – Letters on Yoga – II: CWSA, Vol. 29, p. 97
Faith in its essence is a light in the soul which turns towards the truth even when the mind doubts or the vital revolts or the physical consciousness denies it. When this extends itself to the instruments, it becomes a fixed belief in the mind, a sort of inner knowledge which resists all apparent denial by circumstances or appearances, a complete confidence, trust, adhesion in the vital and in the physical consciousness, an invariable clinging to the truth in which one has faith even when all is dark around and no cause of hope seems to be there.
Sri Aurobindo – Letters on Yoga – II: CWSA, Vol. 29, p. 89
Oh, give us the faith which we lack; give us the certitude of detail which is wanting in us. Deliver us from the ordinary way of thinking and judging; grant that we may live in the consciousness of Thy infinite love and see it at work at every moment and that by our consciousness of it we may bring it into touch with the most material states of being….
O Lord, deliver us from all ignorance, give us true faith.
The Mother – Prayers and Meditations: CWM, Vol. 1, p. 182
“Happy are they who in this chaos of things,
This coming and going of the feet of Time,
Can find the single Truth, the eternal Law:
Untouched they live by hope and doubt and fear.
Happy are men anchored on fixed belief
In this uncertain and ambiguous world,
Or who have planted in the heart’s rich soil
One small grain of spiritual certitude.
Happiest who stand on faith as on a rock.
Sri Aurobindo – Savitri: CWSA, Vol. 33 , Book Seven, p. 499