Sherry Hansen Steiger, the co-author of Christmas Miracles(1), has sent us a set of photos(2) that were taken of her while she was in prayer/meditation. The latter image may show aura changes strengthened by meditation, she writes.

1. http://www.amazon.com/exec/obidos/ASIN/1580625525/ctoc
2. http://archive.coasttocoastam.com/gen/page1227.html?theme=light