In New Age belief, Aura refers to the energy field emanating from the surface of a person or object. This emanation is visualized as an outline of cascading colour and may be held to represent soul vibrations, chakric emergence, or a reflection of surrounding energy fields. Auras may be viewed by the naked eye, though some psychics, like Edgar Cayce, believe this ability weakens with age. Focused training may improve one’s ability to see auras. Layers of aura are separate and distinct yet connected to all the remaining layers. In the books of Carlos Castaneda auras are referred to as luminous cocoons.