There is a difference between who you are and who you want to be, just like what you want and what you need. who we are many times is a question we already know the answer to. We tend to forget as we are in pursue of who we want to be.
When who we are becomes question we have no answer to, man tends to ask "what is the meaning of life." The meaning of life could be identified by subjects;
scientist believe our purpose is to reproduce. They believe everything we learn and do during our lifetime is dedicated to reproducing.
We are shaped by every incident that we cross path with;