There are some things we'll never understand fully, for any number of reasons. Why do we exist? Well, because or parents had sex. But why does life exist? Why does the universe exist? We can make educated guesses based on what we know, but it's unlikely we'll ever have conclusive proof as to how and why everything works the way it does.

I think some philosophy is good and makes you appreciate life more, while other notions are just a bit ridiculous, such as the "You don't exist until I've met you" idea put forth by some philosopher I won't bother to look up. There's no definitive answer to life, and overthinking things just leads to ridiculously depressing thoughts like "It's just all the same... like a prison." Not everyone is caught up with this kind of thing because they either have a faith to follow, or they have something to live for. Their lives aren't tedious because they don't think they're tedious, and that's all that really mattes in the end--not how someone else judges them. Your life is what YOU make it. If you're constantly seeking answers to questions that don't really exist, you're never going to be happy. Or you could rely in your senses and just trust that this is real, that the world is not an illusion, and that you're only as happy as you make yourself. Try going outside once in awhile and just taking in the beauty of a sunny day. Amazing how it can seem to make your troubles evaporate.