Colorless Auras?

Yesterday, Tuesday, I was sitting in my living room with my little brother talking about this and that. I was half paying attention to him, half thinking about other things. I noticed it out of the corner of my eye at first, but then could see it plain as day after I let my eyes focus right. Around my brother was a white aura of sorts. It kind of faded around where he was at. If he moved it would linger where he was for a moment, then move back to where he was at. It had no color to it besides being white, and it came off about 4 inches from his body. At times when he moved and it lingered, it was as far as 7 or 8 inches.

At first I thought it might have been my cornea fireing off from staring, but when I see it on other people, its distance from the body varies with no correlation to the size of that persons body.

Interesting... I've seen the same sorta stuff a few times. Not always bright lights around either so very hard to pin it down to something normal that I know of.
Could be seeing an energy field/vibration somehow..?

Wish you luck in your quest as such..hehe.