There are different demensions out there, actualy layers of them. No lone God, instead we have groups of Elders, they are the ones pulling the strings. While no Heaven/ as we see in the Bible there is a safe place and a purgatory. Our souls are wandering souls trying to find that safe place, some make it and some don't.
Being humans we can't even begin to comprehend any of this, we are simply not equipped to go there. Not unlike a three year old trying to build a computer.
Our current soul is an old one, a wandering soul trying to find a safe haven.