Humans "do anything at all" primarily because of instinct and its cultural offshoots. That's basic food, stability and sex at the primal bread level and complex possessions, knowledge, and relationships as the emergent buttery spread. These things are all natural, physical phenomena — they don't require introspection or philosophy or any particular morality or tradition. One could certainly suggest that "knowledge" or "consciousness" are non-physical miasmas but that answers no questions at the cost of myriad useless paradoxical rabbit-holes.
Pascal's Wager and it only makes sense if you irrationally believe that "souls" exist and "live on" after death, so the whole affair is pointless from a basic skeptical perspective (which goes hand-in-hand, I contend, with basic intellectual honesty).
video games, hiking in forests during rain showers, steak au poivre, etc — that's why I go on.