Live, breathe, always eat your cheese. 
We are unimportant in the grand scheme of the universe, and the meaning of life is a concept that was created by your human desire to feel important. But take a moment to look around you, and just think how lucky we are to not matter. We have the gift to create our own meaning, one that's just for us. Just because the universe doesn't care, that doesn't mean you shouldn't. So live, do things that are important to you, feel alive. Just remember, you are only important if you decide you are.