Aura

In parapsychology and many forms of spiritual practice, an aura is a field of subtle, luminous radiation surrounding a person or object (like the halo or aureola in religious art). The depiction of such an aura often connotes a person of particular power or holiness. Sometimes, however, it is said that all living things (including humans) and all objects manifest such an aura. Often it is held to be perceptible, whether spontaneously or with practice: such perception is at times linked with the third eye of Indian spirituality.

Chakra

Chakra is a Sanskrit word, meaning, "wheel." The human chakras are "wheel-like" vortices, or saucer-shaped depressions that exist on the surface of the etheric human body.
Chakras are energy centers. They function like receivers and transformers of the various forms of prana. Through the nadis, the chakras take in the vital energy and transform it into the frequencies needed by the various areas of the physical bodies for sustenance and development.