" if you can experience a healing over and over again in the inner world of thoughts and feelings, then in time, that healing should finally manifest as an outer experience. And if you make a thought as real as the experience in the external environment, shouldn’t there be evidence in your body and brain sooner or later? In other words, if you mentally rehearse that unknown future with a clear intention and an elevated emotion, and do it repeatedly, then based on what you’ve learned, you should have real neuroplastic changes in your brain and epigenetic changes in your body. "

― Joe Dispenza , You Are the Placebo: Making Your Mind Matter