Yes I have experienced peace of mind, body, and soul since PTSD. Not often but in one of three ways.

Location - usually water and nature when I totally focus on being there and listening and sensing all that I can.

Complete focused meditation with music with nature background.

Occasionally when I am totally absorbed in an activity I enjoy, I stop and realize the mind chatter is stopped, I'm relaxed and enjoying myself. A moment of peace has snuck up on me.

These moments are few and far between, but I hope to increase them tremendously over the summer as I plan to take the summer off from teaching. Just work on me, my space, and creating a life rythym.