I pity those who don't see purpose in life. Without a creator, there is only life, but no reason for it.
Unfortunately, without proof of a creator, the 'reason' you have for life is a sham. So what's better?
If the choice is inconvenient truths or reassuring lies, then most people will choose reassuring lies. This is human nature. Most of us don't want to be 'freed of the matrix.'
Theists would have the purpose of life being 'to die and be with God.' Atheists would have the purpose of life being 'to die and rot.' However, if you find the purpose in life is 'to learn', then what exactly is wrong with that?
Learn. Grow. Change. Overcome. These are things that are the basis of what makes us human. Yet, we're willing to toss that aside because we think we know what happens when we die? Arrogance. Yes, you can learn in a spiritual way as well. But that search should come from within, not dictated by some 'fairy tale' (thanks, ss).
We are living in a time of ever-increasing danger due to battles bewteen religions and science. But when the two worlds come together for the collective good, that opens the door to endless possibilities. ie. Learning without prejudice.
Meanwhile, some of the best people in our history were agnostic. Einstein, Da Vinci, Newton, Hawking, Galileo, Tesla, Franklin, Darwin, Shakespeare: Represent the best of what we have to offer. All agnostic.
Seems to me that when we put aside our petty differences and instead focus on learning, we are capable of true greatness. That is the path that we should take, is it not?