The demand is constant. The sacrifice is a lot as well as the reward. There's nothing that compares to it. And i'm not mad about it or frustrated about it, but it is part of the sacrifice. But i do it because there's joy on the other side of this. So it's hard, but i think at the end of the day, more than hard, i want my life to have mattered. Because i do the hard thing, it actually is helping people. If you're not doing something that's helping people, you won't outlast the heart.