Well, I don't know our purpose for being here, but we do each decide how we approach life. I find it liberating and healing to play and dream regardless of my age. It is what has gotten me through very bad times and what I enjoy doing during good times as well. I don't know why humans bend over backwards to try and live for as long as possible. Most of all, I think it is the dismay at not being in control. Doing all kinds of things that promise a long life creates a comforting illusion of being somewhat in control. It will forever be an illusion though. We might as well acknowledge our mortality and simply enjoy what we can for as long as we can.