Kifflom!
Very rare1.6%ObjectiveOptionalSingle-player
Complete your path to enlightenment... or not.
Complete the Epsilon Program - Michael's long Strangers & Freaks questline for the Epsilon cult. It runs across several missions with real-time waiting periods (and you donate money along the way), ending in "inner peace". Follow a guide for the steps; it's time-gated rather than hard.