What meaning does a tree or sunset have? None either but they are. So are we. One can enjoy without meaning; I liked Erich Fromm's book,
To Have or To Be,
http://www.amazon.com/To-Have-Be-Con...dp/0826417388/ it helped me with myself and my attitudes about life and what was meaningful. Just wholly being can be meaningful (especially if that is all we "get" through being alive).