Here's an example from a Hindu scripture called The Brihadaranyaka Upanishad:

Section X - The Path of the Departing Soul

Verse 5.10.1:

1. When a man departs from this world, he reaches the air, which makes an opening there for him like the hole of a chariot-wheel. He goes upwards through that and reaches the sun, who makes an opening there for him like the hole of a tabor. He goes upwards through that and reaches the moon, who makes an opening there for him like the hole of a drum. He goes upwards through that and reaches a world free from grief and from cold. He lives there for eternal years.

For what reasons is this claim falsifiable or non-falsifiable?

If this is non-falsifiable because of its metaphysical nature then are most claims that deal with karma, rebirth and afterlife (heaven, hell, etc.) also non-falsifiable?

EDIT:

While researching this I found something called Eschatological Verification according to which "a proposition can be verified after death" -- does this mean these 'after death' claims become falsifiable only after death for the person trying to falsify the claim? And for the living, the claim is non-falsifiable?