I told this guy who is my mentor about how I occasionally get panic attacks and hate my guitar playing for a while after. In response he told me a story about how he healed his back with his mind instead of getting a surgery that could potentially kill him. How do you heal yourself with your mind?
the same way you transform from a baby to an adult, or convert food into energy, or make your entire body move and change in interesting ways, using your 'mind'