This was a common question, and Corbie smiled before she sent one of her lights to circle around his head, teasing him to find out. The spell as it was was only light, and like light it didn't feel like anything to the touch. She could invest it with heat and other properties, but that was not part of the shortcut spell. "Different wizards think about this spell in different ways. When I first learned to do it, I thought of it as a candle."