cheap and easy to build
http://www.appropedia.org/Hexayurt_playa

All things in nature vibrate to sound, light and color. Sound frequencies effect everything about us. The correct vibrational frequencies can be used to heal and balance our bodies.

Sound healing is the practice of using sound to realize and correct imbalances in the body. Sound healing works on the belief that the human body is not solid. Rather it is energy that is held together by sound. Any disease therefore indicates that some sound has gone out of tune.

Each color corresponds to one of the chakras in our body. Sound is used in many forms to heal and balance energies. Each chakra relates to a musical note.

sound frequencies

The Pod simulates conditions which are in some ways similar to brainwashing. Because the Pod is sound and light proof and has a soft fur interior to minimise touch, it disconnects you, and that's a state in which you are most receptive to propaganda, or self-determined indoctrination via tape recorders, projectors, light effects, and so on. You could take your mind from a state of near sensory deprivation right through to sensory chaos.

roger dean's retreat pods

by verner panton