Odd how these auras are never captured on film, .... why should the eye, which is a simple single lens camera, be able to detect such, whereas far more sensitive equipment can't,.....
Is it because it is merely a persistence of vision effect, and new agers like to dress it up as something cosmic?
The sad truth is, these people make sweeping assumptions about how things work, and then when reality doesn't meet up with their assumptions, they make grandiose explanations for the discrepancy, rather than revisiting the initial hypothesis.
To believe in auras, according to that web page, you must first accept chakras, 'cosmic energy' and all manner of things.
Occams razor applies here I think folks.