The universe is a beast.
The body is made from tiny stuff, from near-nothings. From atoms swimming through a blood of crackling sparks. Simple, eternal Laws shape the beast. The largest galaxy is ruled by principles of mass and motion. Electrons are slaves to charge and to chance. And this is why the universe feels inexhaustible, eternal.
No sun complains about its death. Life is the problem. Life can be woven from flesh or circuit or thoughtful light. Origins don't matter. But small, half-smart creatures have a fierce talent for denying the inevitable, for balking and complaining about injustices that don't exist and consequences that should be borne in silence.