In all the that i have come to know, experience and feel...in my opinion the meaning of life is
Love. Every person on earth lives to find it. Wars were fought over love, huge money spent on love, many have died or spent long years for love...cried and laughed all for love. Behind everything we do and behind the visage that is the earths system of things is love becasue love is what binds us or seperates us.
Oh...and some one is going to say this in this thread so it might as well be me

No, The Answer to Life, the Universe, and Everything is not 42 xD