Objectively? None. Zero. Nada. Zip.
Lifes "meaning" is a purely subjective experience. What is the meaning of your life? Does mine have the same meaning?
Asking the meaning of life is a silly question anyway, like asking the flavor of green, or the sound of one hand clapping. Nice zen koans meant to make you think past the surface, but containing no objective "meaning" themselves.
Your life is objectively meaningless. Actually, attaching meaning to ones life is not what we are really talking about since "meaning" itself is a subjective thing. What we're really asking is what is the purpose of your life?
This is easier. None. Purpose presuposses a design. That someone or something had an intended function or outcome for your life, that there is a "goal" of sorts for your life.
Theists of course believe this. They don't know what the purpose is (to love and serve the lord and do his bidding?) but they believe it anyway.
You are a mobile container of genetic instructions intent on reproducing themselves. You are a sophistcated delivery system for the genes you carry, with advanced self defense and survival capabilities.
There is much physical evidence to support this conclusion (learn evolution and read the evidence for yourself) and none to support theism.
As for my own subjective purpose/meaning/goals, I have many. Be happy. Learn new things. Enjoy my family. Go backpacking and kayaking as much as possible, among many others.
Warning: The first theist to "pity" me (which has happened many times) gets flamed, with gusto, from now until eternity, no matter where you post.
Have at it.