Man Visible and Invisible

Many people have claimed to see colors surrounding others.

In religious art, the nimbus of glory is very often depicted about the heads of saints or holy figures.

—If there actually are such colored phenomena, what is their purpose?

—How constant are the colors of your aura?

—What happens to it when you have a sudden outburst of devotion? Of anger? Of fear?

In Man Invisible and Visible, the clairvoyan...