Life is given in self determined levels, Earth's Humans current level of power is considered a .07, there are predicted to be 4 known levels of power, level 4 is the fringe edge of actaully being a god, level 5 which is unknown would be a god.
these levels are determined by how much energy you can control in all possible universes.
a god like race does not have to be inside and or outside a given reality because they would control the highest level of energy possible. they could do anything they liked.
how many of these level 5 civilizations could exist would be very very rare.
Reading this post reminds me of a book I read online "Thiaoouba Prophecy"
That was an excellent read...one of my favorites.
Regards...