I can walk onto any stage and own it, feel the whole room lean in. Then the lights drop, the crowd files out to grab their coats, and by the time I load my gear they've already forgotten I was there. I keep giving them everything I have and watching it evaporate the second it's over.
More people experience this than they realize.
You pour your whole self into a crowd that moves on the instant the show ends.
If this sounds familiar, the Library can help you find the bigger picture.