What if the cold-hearted truth is that in order to escape reincarnation and this suffering is to kill all humans which is why the Death Cult started in the first place. The only way to peace is through death, or possibly to become and merge with machine.
or/else
God was the Light in the Darkness that suggests and nudges you to keep going because the sacrifice paid in blood, sweat and agony will have heavenly rewards. There's still stuff to explore, unless you're okay with being a bored Death Culty jackass.