Atum’s answer passes beyond the next world; it is an eschatological answer that holds a promise of perpetuity even when the world has reverted to the uroboric state.
Neumann interprets Atum’s dialogue with the dead Osiris as the supremely eschatological statement of Heliopolitan theology, wherein the creator god promises the soul deathless companionship even after the cosmos dissolves back into primordial chaos.
, The Origins and History of Consciousness (Princeton, 2019thesis