It’s so wonderful to have other people read and share their experience 
Yes, I’m more and more confident that what I had in the past were what is called a PCE, comparing it to some descriptions of it. I described it like this previously:
What I have, I can only describe how it feels like, when I remember it, after it ends. And it’s like if it was a “dream” in the sense that everything was perfect and happened automatically without me intervening at all (no choices, no doubts, no emotions…) and in the sense that I had no notion of time passing. Colors and taste can be described as perfect, I can see that. But I can’t say that when I hear “becoming the sensations” I’m reminded of how it felt like. In a way, in these episodes I don’t realize how different I am: it’s simply that everything works out great and I’m not messing it up and I’m not thinking about it.
Regarding not understanding the “becoming the sensations”, I got some clarity from this reply from Vineeto:
I am only mentioning this so you can understand that the realisation that “being the senses only” is not necessarily an early information one receives from a PCE, and especially as in normal perception-mode sensate experience is overlaid by feelings, emotions and passions and often feeling-fed thoughts.
When you say this:
It’s hard for me to even contemplate how wonderful it would be, a life always like this, in this perfect state… Yet, at this point, I wouldn’t say my life would be a waste even if I never manage to have a PCE in the future. Life is already pretty great as it is. But there are times that something happens, and it’s apparent that if I was free from this natural and social conditioning, it would have been different — specially for others: the experience of others you be better if I didn’t behave the way I behaved. That part, being “harmless” is as appealing to me, as being “happy” at this point, I think.