The Circle of Excellence (also called ring of power) in is a tool using an imaginary circle on the floor as a spatial anchor to install new or additional resources relative to a situation where different behaviour or thinking is wished. It is often used as an anchoring exercise.
The Circle of Excellence is a basic self-anchoring process originally developed by Dr. John Grinder co-creator of NLP. Circle of Excellence can be used to elicit, create and stabilise desired states. The Circle of Excellence uses a kinaesthetic anchor to activate a moment of excellence, i.e. a moment in which you are at the top of a high state, in which you feel like superman/woman.