Earth, Milky Way Galaxy
That "feel good" feeling is workout inspiration.
“Honestly, my inspiration for working out is just knowing that I am going to feel better afterwards. It's the endorphins. It's the happy feelings. It's my happy place. That's.. That's my inspiration. So. Um.. just that's what it is. Uh, Probably not the best advice for anybody who doesn't feel that way. But it does for me.”