Q: When a sadhak works with the right attitude and the higher Force acts in him directly, how does the Force work to purify or remove his defects and imperfections?
It acts by awakening the inner consciousness gradually or swiftly, by replacing the principle of ego-service by the principle of service of the Divine, by making him watch his actions and see his own defects and pushing him to rectify them, by establishing a connection between his consciousness and the Mother’s consciousness, by preparing his nature to be taken up more and more by the Mother’s consciousness and force, by giving him experiences which make him ready for the major experiences of Yoga, by stimulating the growth of his psychic being, by opening him to the Mother as the Universal Being, etc. etc. Naturally it acts differently in different persons.
Ref: The Mother with letters on the Mother