I've had DMT a few times now, don't believe I've ever had a breakthrough (aphantasia makes it hard for me to know) but even still I've had very beneficial and beautifully spiritual experiences.
A really fascinating one recently was a lighter dose that allowed me to feel the separation of me from my body, I was existing detached from my physical body. But the awesome part was my body started doing some stretches that felt instinctive and primal, I wasn't deciding what to do I was just aware and observing what my body was doing.
I've had some neck pain and tightness for a good few weeks, whatever stretches I've tried to help alleviate the pain have been ineffective. It's like there was something trapped in my shoulder. Well on this DMT trip my body knew what to do, I felt the stretches I was doing hitting the spot and providing relief. In the days after the pain has been easing and significantly improved.