@Cbreeef66 , The thing I like the most about what you say is that you can separate pain from suffering and a person doesn't need to suffer because of pain. As you mentioned in your first post in this thread, that understanding and practice is monumental is changing how pain is experienced. I wish everyone could come to that understanding. It's not easy at first but with practice it will change how a person views things.
My teacher has said that a question like "why me?" says a lot about the person asking it but is never in any circumstance productive, nor does it ever have an answer.
I love what a truly good form of meditation (such as you are describing) can do for a person. It's not for everyone, though. I tried to do it and was fully on board with all the concepts but couldn't manage to continue it because it was just not my thing, and so after 2 years of daily I quit. Fortunately there are other things that will do basically the same thing. The teaching I follow has made a huge difference for me, and doesn't include meditation although many people also meditate.
I am not surprised to hear that the term "radical acceptance" has ancient origins, although the ancient teaching may have used a different word from "radical". I
love the phrase, think it is perfect, and want it to help everyone. While I had practiced acceptance for many years, adding the "radical" gives me a strong reminder each time that nothing, absolutely
nothing can be left out of the sphere of acceptance. It has to be everything, all the time. Again, not easy, but well worth the effort. For many people, the right kind of meditation can lead to this.