So there's the theory of the multi universe, where if we were to keep going further into space that sooner or later we would reach an end to it. Being that the entire Universe itself is inside a bubble, next to other bubbles that have there own universe in them as well. I  believe in the idea of division by two. consistently cutting size in half by two until we reach another universe, being so small that nothing can affect the other universes or "world". We also know that energy can neither be created nor destroyed... We are made up of energy and created from the same materials as the stars in the sky, what if energy is so light and small, that when we die, it goes into the next universe and we get to relive our lives over again? Being weak from death, and having no memory at all, we are reborn to live out lives over again. This time with different decisions. What if there is an infinite amount of universes that you consistently live that have different decisions made in them? Also having an infinite amount of universes that you don't exist as well, meaning there are an infinite over an infinity of things that could ever happen to you and without you. Having people who aren't born in this universe, but having there own infinite universe of there own? from one little change to something drastic, would change everything.. example: if a wolf eats a deer, it means nothing to us, but in the reality of the universe, it would have changed everything that ever could have been or ever was with that deer. what If the deer hadn't been eaten? Maybe in a long run, the deer would have had breed some young, and the young would have been eaten by someone who was starving to death, but if the wolf had eaten the first deer, the person would have died who was starving. Now if the wolf hadn't eaten the deer, the person could have lived and maybe could have had children of there own, that would have drastically changed everything. What if we do relive our lives in the other universe, but with different decisions up to a point at any given time? only being one choice made to change EVERYTHING. everything could have followed through up to any moment in time that we decided to do something different, like me picking up a glass of water instead of a glass of tea, may seem like nothing, but it could alter anything in the future because i thought differently at that moment, meaning my decision on anything COULD be different afterwards. Also an idea for instincts, maybe we have a feeling or "reminder" or being at the same situation as before? What if so called God, is the universe itself. Nothing is perfect. so how could heaven be? They say Angels envy us for living. what if Living is our heaven, and that we relive our lives until its perfect, but nothing is perfect and for one to have perfection another wouldn't. meaning we would be in a constant cycle of life forever, learning something new every time without knowing it. We create our own heaven and hell. Judgment is the people that are around us.. If someone had killed someone else, they would go to jail. possible for life, so it seems like the worse thing ever to be stuck in a room for the rest of your life thinking you'r going to die and not know what will happen next, what if its a lesson to learn and the next time you live that life, you make a different decision, based off of your own instinct. Because whats a worse punishment than not knowing whats next, but being able to relive your life, its kinda like being grounded, just not knowing you will someday be free again. There has to be an unlimited amount of energy, meaning an unlimited amount of lives that could ever live, just in another universe that we may be able to see again. Who knows, maybe this is our tenth billion life living here again, and with an infinity amount of living, it really seems like nothing has changed at all, compared the universes itself going on forever. Meaning we may have nothing to fear at all after death. This is all just an idea i'v made up, but it's always running through my mind. Im probably wrong, but its just a thought.