Faith in the spiritual sense is not a mental belief which can waver and change. It can wear that form in the mind, but that belief is not the faith itself, it is only its external form. Just as the body, the external form, can change but the spirit remains the same, so it is here. Faith is a certitude in the soul which does not depend on reasoning, on this or that mental idea, on circumstances, on this or that passing condition of the mind or the vital or the body. It may be hidden, eclipsed, may even seem to be quenched, but it reappears again after the storm or the eclipse; it is seen burning still in the soul when one has thought that it was extinguished for ever.
The mind may be a shifting sea of doubts and yet that faith may be there within and, if so, it will keep even the doubt-racked mind in the way so that it goes on in spite of itself towards its destined goal. Faith is a spiritual certitude of the spiritual, the divine, the soul’s ideal, something that clings to that even when it is not fulfilled in life, even when the immediate facts or the persistent circumstances seem to deny it. This is a common experience in the life of the human being; if it were not so, man would be the plaything of a changing mind or a sport of circumstance.
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.
Who is there that practises the Yoga and has not his periods, long periods of disappointment and failure and disbelief and darkness — but there is something that sustains him and even goes on in spite of himself, because it feels that what it followed after was yet true and it more than feels, it knows. The fundamental faith in Yoga is this, inherent in the soul, that the Divine exists and the Divine is the one thing to be followed after — nothing else in life is worth having in comparison with that.