If you have ever asked yourself this question, I think you are a courageous and bold individual, because not everyone will pose the question to themselves, rather they will find different ways along their lives to keep themselves busy enough to believe that it doesn't matter. The truth is, even if one has discovered the meaning themselves, it doesn't mean much to dictate to another person the answer, because it can only impact your life if the answer has been revealed to one from within. It is better to guide people to the means of discovering the purpose, which can only be, to look within. Through reflection, prayer, meditation, time alone, time with people but alive inside to the nuances of collective life - all of this will not only reveal the answer to you, but it will create you first into a person that may understand and live out, the answer.