The Accrescent soul (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Isidore's "grown-on" second soul, growing through mineral, plant and animal up to man; Jung read it as a metaphysical projection of the collective unconscious.

The Bush-soul (n.) makes ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠a man whose brother is a crocodile safe swimming a crocodile river; injure the soul-tree and you injure the man.

The Bush-soul (n.) belongs ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠to a person without living in his body: it dwells out in the forest, inside an animal.

The External soul (n.) lets ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the savage deposit his soul in his totem for safekeeping — and since he doesn't know which animal holds it, he spares the whole species.

The Ka (n.) was, ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠in Egyptian royal theology, the divine life-force and procreative power dwelling in Pharaoh, made up as it were of his ancestral souls and consubstantial with the father-god.

The Ka (n.) was ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Egypt's Holy Ghost: the procreative power binding father-god and son-king into one, which early Coptic Christians simply renamed.