A child might imagine that a tree stump is a bear in order to develop a game with her friends and straddle the real world of the tree stump and the imagined world of the beargame, using the former to “prompt” additional play and “broaden our imaginative horizons”: “They induce us to imagine what otherwise we might not be imaginative enough to think of. It might not occur to me to imagine a monster sitting atop a mountain were it not for the influence of certain suggestive rock formations.”46