Ah, 'why'... The question people have been asking for years. Most of them never do get the answer they're looking for. The fact is, we all have to come up with that answer for ourselves, (which is really inconvenient sometimes). The best answer I've ever seen for "Why" is in the book 'The Shack' by William Paul Young. I was amazed with this book. The answer he comes up with is so simple, yet it eludes most people. Give it a read and see if that doesn't answer it for you.