Instead, Reincarnation is a fluid dip into the corporeal sea by a spiritual essence, fully realized, ongoing, ever present.
It doesn't 'need' to evolve, although 'growth' is desirable. Reincarnation is an expression of the Spirit and, as such, doesn't grow from lifetime to lifetime, each step a progression higher and higher.
It already IS . . . and it can move in and out of 'bodies' in ways that cannot be captured in a linear growth model.
We reincarnate to express our truth, not to find it."