The concepts of heaven and cosmology, including the multiverse and parallel universes, are explored. I discuss differences between physical dimensions and the spiritual realm, critiquing string theory and advocating for a spiritual understanding of heaven as distinct from physical dimensions and laws.

Interdimensional beings are extradimensional beings, as distinct from extraterrestrials are perceived as entities in realms beyond our physical universe, governed by different principles. These beings may exist as energy or abstract forms and are common in science fiction and spiritual demonic contexts. Modern scientific language is used to make them acceptable.