“Seth material” search engine (Jane Roberts)

Reincarnation exists, then, on the part of all species. Once a consciousness, however, has chosen the larger classification of its physical existences, it stays within that framework in its “reincarnational” existences. Mammals return as mammals, for example, but the species can change within that classification.¹ This provides great genetic strength, and consciousnesses in those classifications have chosen them because of their own propensities and purposes. The animals, for example, seem to have a limited range of physical activity in conscious terms, as you think of them. An animal cannot decide to read a newspaper. Newspapers are outside of its reality. Animals have a much wider range, practically speaking, in certain other areas. They are much more intimately aware of their environment, of themselves as separate from it, but also of themselves as a part of it (intently). In that regard, their experience deals with relationships of another kind.

(10:03.) In the case of earth the grid of perception is simply used differently, certain areas becoming prominent in some eras, and less prominent in others. Using your idea of time, I can only say that when the entire gestalt of consciousnesses that formed a particular earth have formed its reality to the best of their abilities, fulfilling their individual and mass capacities as far as possible, then they lovingly turn over that grid to others, and continue to take part in existences that are not physical in your terms. And that has happened many times.