What was initially a line of white light around a person focuses into a variety of colors and textures. Energy which is flowing properly appears different from energy which is stagnant or blocked. The human aura is a reflection of who the person is and what they are feeling. People emanate different auras at different times. An aura is like a portrait, and these portraits appear in color.
People can perceive our auras, either visually or emotionally.
Our aura can create a self-fulfilling prophecy. When we throw out certain 'vibrations', we alter our energy. Imagine someone going to a party and feeling shy. Not knowing a lot of people, the newcomer tends towards the corner. Feeling insecure because no one is talking to them, a change in their energy occurs.