Not sure what my point is, but perhaps being too much into Buddhism and similar things made me lose touch with more normal human emotions.. or I live in regret myself and push it aside, ha.
not living a life true to oneself, working too hard, not having the courage to express feelings, losing touch with friends, and not allowing oneself to be happier.
With a heavy overweight on the first point. I think that the comment "he wasted his life" is supposed to be in reference to this, that most people realize at the end that nothing really mattered, and that they chose to follow the structures of society by default instead of daring to do what they inherently wanted intrinsically. Then you can feel as your life was wasted, you got a single chance to play around and do what you like with your brief time in the universe and you chose to let someone else dictate how that was going to go, a waste.
I, on the other hand, do not lack courage to do hard things. But I have learned that it is a strawman - it does not make you happier to quite you job, leave your spouse, go for your passion in a startup, etc.
Luckily I fucked up everything in that fever dream early enough that it did not have substantiel impact on my life.
Nobody was holding her hostage with a knife to her neck.