How would you play a nihilist paladin?

wearepaladin:

To quote a certain vampire with a soul, “If nothing we do matters, then all that matters is what we do.” As koans go, it’s the one that stuck with me. If the universe is a chaotic and cruel mess, then the only ones with power to change it is us. These Paladins see no divine purpose in the stars, so they make their own, and for them, it is enough.