Im not sure if yall have done this, but every now and then I pretend i have wings on my back and start flapping them. Couple seconds in I start faintly feeling something contracting where my shoulder blades are and when I imagine contracting the wings to a certain extent I could noticed the extent of the contraction in my shoulder. Its like a tingly feeling not a full on sensation. You guys should try it too and see what you notice
I use to do this all the time. There were times I imagined someone rip them off of me, not sure why. I would imagine flying and even meeting those who fly at the center of creation(were creation began). In my imagination there was a winter and summer side and there were beings that had wings (maybe angels). I seemed to see them in my mind as I went there. For a long period I was sure I had wings but other times only imagined where the wings once were on my back.