Transformation
The effects of game playing are not only social and cognitive. When players are deeply focused on a game, they are capable of transforming objects or creating them. Whole environments arise spontaneously out of thin air. Impossible to capture fully in words, transformation seem to arise out of heightened physical movement and of exchange of this moving energy between players. Change occurs not once but over and over again.
Transformations are theater magic and an intrinsic part of most theater games.
Text from: Spolin Products