From Art of a Shaman, CHAPTER 4:
"The private performance is a way to regain the magical power of the doing of art. Defining what is a private performance is an interesting way to enter the magic. I define it as a ritual that is not for an audience. It is something that has to be done, something you may not even want to do. One of the easiest to frame as a private performance is a shaman going to his secret spot to do rites nobody will see to open himself up for channeling visions that he cannot personally use or tell anyone about. We have seen other obvious private performances -- the child, the madman, the artist alone doing art. We can add things like doodling, singing in the shower, playing invisible drums to the radio when you are safe alone in your room. It is something that has to come out. It is something too silly, too taboo, too sacred, too intense, too raw, too vulnerable to be done in public, to be expressed. This may be where real art begins."