On Light, Again

[sdi]

One of my best friends told me that he was standing next to a telephone when suddenly an angel walked in through the closed window. It had a nebulous, luminous appearance. The angel said a few comforting words and then disappeared again. That was very important to him for at that moment he feared for his life. This friend said to me: "Now I understand why angels are shown with wings: it is their radiance."

(H. C. Moolenburgh, A Handbook of Angels I, emphasis mine)