Some weird thinking on Aura's

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. 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.[1][2] Various writers associate various personality traits with the colors of different layers of the aura.[3][4][5] It has also been described as a map of the thoughts and feelings surrounding a person.[6][7]

Skeptics such as Robert Todd Carroll contend that people may perceive auras because of effects within the brain: synesthesia,[8] epilepsy, migraines, or the influence of psychedelic drugs such as LSD.[9][10] Other causes may include disorders within the visual system provoking optical effects. Eye fatigue can also produce an aura, sometimes referred to as eye burn.

Synesthesia (also spelled synæsthesia or synaesthesia; from the Ancient Greek σύν syn, "together", and αἴσθησις aisthēsis, "sensation") is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway.[1][2][3][4] People who report such experiences are known as synesthetes.

Difficulties have been recognized in adequately defining synesthesia:[5][6] many different phenomena have been included in the term synesthesia ("union of the senses"), and in many cases the terminology seems to be inaccurate. A more accurate term may be ideasthesia.