That's easy: the meaning of life is doing cool stuff, and not doing stuff that sucks or is lame.

It's funny because it's true.

The meaning of life is to do everything you can to make sure the people you care about love you back." X Warren Buffet

To know and worship the Creator.

Well, our creator is at least a type 4 civilization that is exploiting the existence of our universe to generate energy in some way. I think the ultimate purpose of humanity is to trigger the big crunch so we can exploit the infinite computational power you get from a contracting universe. Plus it would be pretty cool to be reunited with all the other matter and energy as one.

Or we're the biproduct of an axiomatic system like our mathematics.

Either way, I strongly doubt the entities superior to us, inside or outside of our universe, care about or even notice our worship. But hey, if it makes you feel better, it doesn't bother me, as long as you're not telling me who I can or can't marry or holding back fundamental scientific research.

To wear hats.