["You do not need science to tell you what your purpose in life is, anymore than you need religion. The key is that there is no external supernatural agent supplying some epic "purpose" to your existence. You have simply got to step up to the plate and select a purpose for yourself! It is really not any more complicated than that. You're already doing this whether you realize it or not, even if you are religious. If that's the case, you have simply selected notions of purpose that appeal to you, from an outside source (a "holy" book, for instance) and then become convinced that this comes from a God. But it's still you selecting your purpose - it's just kind of like you're transferring the responsibility elsewhere."]

You do not realize that there is only one true purpose in life and that is whatever the purpose God wants you to follow. Any other purposes are wrong and you will end up in Hell.