a pernicious and malign influence that is hard to get rid of; "racism is a pestilence at the heart of the nation"; "according to him, I was the canker in their midst"
a product of your creative thinking and work; "he had little respect for the inspirations of other artists"; "after years of work his brainchild was a tangible reality"
a sudden intuition as part of solving a problem
arousal of the mind to special unusual activity or creativity