We hold each pose or expression for 5 minutes so it's very deep stretching. And that length of time allows me to really settle into it and just be for a bit. Then I literally feel the sound waves...it can get kinda loud but not in a bad way. Its like the boundary between my skin and the air around me melts for a minute and I am the frequency. I love to take that sense of solidly just being plus the sense of being one with frequency off the mat into the world with me.