We have then practically two buckets, and when this stage is reached in a group-soul it splits into two, as a cell separates by fission.

In this way, as the experience grows ever richer, the group-souls grow smaller but more numerous, until at the highest point we arrive at man with his single individual soul, which no longer returns into a group, but remains always separate.
One of the life-waves is vivifying the whole of a kingdom; but not every group-soul in that life-wave will pass through the whole of that kingdom from the bottom to the top.

If in the vegetable kingdom a certain group-soul has ensouled forest trees, when it passes on into the animal kingdom it will omit all the lower stages--that is, it will never inhabit insects or reptiles, but will begin at once at the level of the lower mammalia.

The insects and reptiles will be vivified by group-souls which have for some reason left the vegetable kingdom at a much lower level than the forest tree.

In the same way the group-soul which has reached the highest levels of the animal kingdom will not individualize into primitive savages, but into men of somewhat higher type, the primitive savages being recruited from group-souls which have left the animal kingdom at a lower level.
Group-souls at any level or at all levels arrange themselves into seven great types, according to the Minister of the Deity through whom their life has poured forth.