Saṃsāra · the six realms

The round turns through six destinations — gods, jealous demigods, humans, animals, hungry ghosts, hells — all of them temporary, the heavens included, whose inhabitants have the worst problem of all: they are too comfortable to practise. Human birth is the lucky one because it hurts enough to motivate and not so much that it overwhelms.

The cosmology, and the direct rhyme with the Kabbalah's gilgul — which is unusual enough among Abrahamic systems to be worth the whole thread.