Okay, it's really about you. (Isn't everything?) Why are you here? Accident? Aliens? God? Each answer has consequences:
If by accident, nothing really matters. Be good to others, so we can all enjoy the ride now and the subsequent dirt nap after.
If by aliens, why? What do they want from us? Are they benevolent or malevolent? Do we welcome them or try to resist them?
If by a god, which one? Differing ideas of a god give us different definitions of what might be expected of us.