A decade later, Simone Biles is still on top. The gymnastics star has won her record eighth U.S. Championship, a full 10 years after she first ascended to the top of her sport as a teenage prodigy.

Simone Biles is not going to explain herself. Part of this is by design. Part of this is because she simply can’t.

When the gymnastics star is at her best, as she was on Sunday night while winning her record eighth U.S. championship, she feels like she’s in a “fever dream.” It’s not autopilot exactly. It’s more of a vibe. A flow.