Yes, you are so right. My goal is to explain a little of Auditory Entrainment with distinguished forms of tones. So you will use them to relax or to minimize pain. And in the next following 3 parts I will show you how this system of entrainment will function, so that you can influence your brain wave patterns only by tones/music/waves. Thanks a lot for reading and commenting. Nice having you with me. All the best!