You do know other dimensions are real right? Such as, the darkness of outer space is actually a multidimensional fabric that separates dimensional levels, where what is called heaven is actually a dimension above us that is on the top side of our reality, which is hidden by the multidimensional fabric of space. The darkness in outer space itself, like the darkness in between stars and galaxies, is the fabric of space, it is an object, a structure, a more than 3 dimensional border wall. There's actually physics that help explain this but it would be like trying to talk to a monkey at the zoo with you.