The splintered aspects of the soul, the aspects that require healing, need to interact in physical matter so that each part of the splinteredness can become whole. The personality is like a complex mandala that is formed from these splintered parts in addition to the parts that are not splintered. It comes directly from the parts of the soul that the soul has chosen to work on in this lifetime to heal, that need to experience physical matter, and those parts that the soul has given to the process of healing in which you are involved.