'People have sensed auras, or energy fields, around other people since biblical and even ancient times. The concept is reflected in the halos you see in artistic representations of Jesus and various Christian saints, in the Indian concept of prana, or a person’s life energy, and in the idea of chi in schools of Chinese philosophy. There are countless names for the aura, but its significance remains roughly the same: Auras represent our current state of mind, they are constantly changing, and only certain people have the ability to see them with the naked eye.'
'A possible scientific explanation for the ability to read auras is synesthesia, a condition that causes people who have it to experience one sense when another is stimulated. Researchers have even found certain healers to be undiagnosed synesthetes, but the overlap between what readers and synesthetes see isn’t consistent.'