I think that's a shorthand for "not dysfunctional and neurotically impaired".

For me? Not being hyper anxious all day (to the point that I just freeze and procrastinate all day), being able to sort of focus on the most important task (I'm still ADHD with 1000 unfinished projects, but at least I finish the things that have to be finished), eating healthy and enjoying exercising (100 lbs down and got quite good at tennis), not entering into a rage state due to anxiety overflow everytime I fight with my wife, being able to regulate my emotions, I could go on and on honestly.