Life is not short.This is something that everyone knows in her or his heart, although it is difficult to prove logically.If we had only one life to live, it would be ridiculous to endure all the hardships of experiencing and learning. That is, life would be unworthy if there was no love.Conversely, knowing that this is not the only life we are experiencing and that there are more roles we have not yet played in other worlds is something that may even...