How can my passion manifest itself in my work?

I get lost in it. Imagine falling into a void, but loving every minute of it. Like when people talk about being in the zone. My wife could probably identify it because I'm probably singing to myself, listening to Westlife or some kind of sing-along. I love a good sing-along, I have to have something going in the background! Love it. I just get lost and I'll lose track of time. It'll be 2:00 AM and I'll be like, "Oh wow, okay." But at no point does it feel pressured. Doesn't feel expected. You just feel great and you don't struggle to sleep, you don't struggle to wake up. I've only ever been a four to five hour sleeper every night for decades. And I wake up and if I wake up happy after one of those sessions, I go, "It was a good one. The void was good." Why be fearful of traveling into a black hole?