The presence of the divine Adjuster in the human mind makes it forever impossible for either science or philosophy to attain a satisfactory comprehension of the evolving soul of the human personality. The morontia soul is the child of the universe and may be really known only through cosmic insight and spiritual discovery.

The concept of a soul and of an indwelling spirit is not new to Urantia; it has frequently appeared in the various systems of planetary beliefs. Many of the Oriental as well as some of the Occidental faiths have perceived that man is divine in heritage as well as human in inheritance. The feeling of the inner presence in addition to the external omnipresence of Deity has long formed a part of many Urantian religions. Men have long believed that there is something growing within the human nature, something vital that is destined to endure beyond the short span of temporal life.

Before man realized that his evolving soul was fathered by a divine spirit, it was thought to reside in different physical organs—the eye, liver, kidney heart, and later, the brain. The savage associated the soul with blood, breath, shadows and with reflections of the self in water.

In the conception of the atman the Hindu teachers really approximated an appreciation of the nature and presence of the Adjuster, but they failed to distinguish the copresence of the evolving and potentially immortal soul. The Chinese, however, recognized two aspects of a human being, the yang and the yin, the soul and the spirit. The Egyptians and many African tribes also believed in two factors, the ka and the ba; the soul was not usually believed to be pre-existent, only the spirit.

The inhabitants of the Nile valley believed that each favored individual had bestowed upon him at birth, or soon thereafter, a protecting spirit which they called the ka. They taught that this guardian spirit remained with the mortal subject throughout life and passed before him into the future estate. On the walls of a temple at Luxor, where is depicted the birth of Amenhotep III, the little prince is pictured on the arm of the Nile god, and near him is another child, in appearance identical with the prince, which is a symbol of that entity which the Egyptians called the ka. This sculpture was completed in the fifteenth century before Christ.

The ka was thought to be a superior spirit genius which desired to guide the associated mortal soul into the better paths of temporal living but more especially to influence the fortunes of the human subject in the hereafter. When an Egyptian of this period died, it was expected that his ka would be waiting for him on the other side of the Great River. At first, only kings were supposed to have kas, but presently all righteous men were believed to possess them.