After age thirteen, a person’s performance of mitzvot – performed with the intention to give satisfaction to his Maker – begins purifying the selfish desire to receive that had been imprinted in him. [Performance of mitzvot] gradually turns [that selfish desire] into a desire to give. This gradually draws [mamshikh] the holy soul from its roots in the plan of creation. It [the holy soul] traverses the entire system of sanctified worlds and becomes enclothed in the body. That is the time of repair.