Experiencing joy is an act of defiance if you are experiencing narcissistic abuse. It was taken away for so long that I can only liken it to letting in the light after you have been sleeping in the dark. You sort of squint for a minute, but as time goes on you become more practiced at seeking it out and reveling in it when you find it. It’s like your soul waking up after a long sleep, and you find you are still capable of feeling the good and not just the heaviness of constant rumination.