The Loneliness of Humanity - 1
Many religious, science fiction authors, and scientists ponder the existence of multiple universes, multiple timelines, and multiple lifetimes mainly, they say, because of the fascination with the possibilities. "Multiple" is also substituted with "parallel," as in [parallel universes/ timelines/ lifetimes]. I'm increasingly convinced that the perseveration on these concepts is actually and untimately a rally against the finiteness of humankind and it's loneliness.

Douglas Adams, the famous sci-fi/comedy author (Hitchhiker's Guide to the Galaxy), wrote of a "torture" device consisting soley of a display of the entire universe and a "You Are Here" arrow pointing to an infinitesimal speck. The torture consisted of one's realization of his/her absolute smallness, insignificance, and loneliness in the universe and this realization driving them insane.