The sekhem was the force or ruling power of man, but is rarely mentioned.
The ab is the will and intentions, symbolised by the heart; often used in phrases, such as a man being 'in the heart of his lord,' 'wideness of heart' for satisfaction, 'washing of the heart' for giving vent to temper.
The hati is the physical heart, the 'chief' organ of the body, also used metaphorically.
The ran is the name which was essential to man, as also to inanimate things. Without a name nothing really existed. The knowledge of the name gave power over its owner; a great myth turns on Isis obtaining the name of Ra by stratagem, and thus getting the two eyes of Ra—the sun and moon—for her son Horus. Both in ancient and modern races the knowledge of the real name of a man is carefully guarded, and often secondary names are used for secular purposes. It was usual for Egyptians to have a 'great name' and a 'little name'; the great name is often compounded with that of a god or a king, and was very probably reserved for religious purposes, as it is only found on religious and funerary monuments.
We must not suppose by any means that all of these parts of the person were equally important, or were believed in simultaneously. The ka, khu, and khat seem to form one group; the ba and sahu belong to another; the ab, hati, and sekhem are hardly more than metaphors, such as we commonly use; the khaybet is a later idea which probably belongs to the system of animism and witchcraft, where the shadow gave a hold upon the man. The ran, name, belongs partly to the same system, but also is the germ of the later philosophy of idea.
The purpose of religion to the Egyptian was to secure the favour of the god. There is but little trace of negative prayer to avert evils or deprecate evil influences, but rather of positive prayer for concrete favours. On the part of kings this is usually of the Jacob type, offering to provide temples and services to the god in return for material prosperity. The Egyptian was essentially self-satisfied, he had no confession to make of sin or wrong, and had no thought of pardon. In the judgment he boldly averred that he was free of the forty-two sins that might prevent his entry into the kingdom of Osiris. If he failed to establish his innocence in the weighing of his heart, there was no other plea, but he was consumed by fire and by a hippopotamus, and no hope remained for him.