Before a controlled high dose Psilocybin experience I "felt" my emotions: Anger, Fear, Frustration.
Afterwards, I gained the ability to observe and "catch" my emotions in-flight. Not sure if it was neuroplasticity induced by the substance, or "you don't know what your brain can do until you know it".
I liken it to previously having Ring 1 access to my thoughts, now I have Ring 0 access.
Definitely persistent: DRAMATIC improvement in my happiness and wellbeing.
YMMV