The transformation of our nature cannot be achieved all at once by a miracle; that would contradict the very law of our evolution as sanctioned and determined by the Divine. We must go through a long and patient course of sadhana and bring out in a progressive self-fulfilment all our divine possibilities.
Old movements persist in us, which were once necessary for our development at a lower stage of life, but now must be wholly rejected, as they constitute a great obstacle to our further progress. They go on mechanically through sheer force of habit, and are supported by our ignorant mind. This tamasic inertia of our nature must be removed by constant seeking after true knowledge. Yoga is a conscious and deliberate process, and we must leave nothing to chance.
And in all our attempts to rise we have the fullest support of the Divine Mother; indeed it is through our evolution that she is fulfilling the will of the Divine Lord. So we need not at all be discouraged by obstacles and difficulties, however great and stupendous they may be. Nothing can stand against the Divine Grace, once it finds true conditions to work in us.
Depression and doubts are our greatest enemies, and they rise the more we allow ourselves to descend to the level of the ordinary consciousness. By a living, ceaseless aspiration we should always look up to the infinite glory of the divine life to which we are destined, and through the Grace of the Mother nothing will be able to resist our onward march.
About Savitri | B1C3-05 Progress of Man Towards Divine Superhumanity (pp.26-27)