The Thought Form both transmitting and receiving information to and from the body. To some, it is perceived through the senses. An aura often exhibits shapes, colors, textures, hues, sounds, patterns and emanates light. It is thought to have an electromagnetic nature. Differences in aura colors are perceived because the distribution of light particles versus the wavelength in any given electromagnetic field varies greatly (due to differing energetic vibration). Any or all of these characteristics of an aura can tell a practitioner of energy valuable information about the physical person or thing the aura is associated with. They can tell a nearly complete story of who you are. An aura will respond to a thought and change its characteristics to match that thought.