There is a great deal of narrative in play and also of play in narrative, especially in the narrative and play of young children. Part of the reason for this may be that they share an important pattern or structure in the way they work as mental instruments, "mimesis." Mimesis is a mode of representation in which the relation between the symbol that represents and the thing in the world that is represented is in some sense imitative; that is, the representation resembles the thing represented. The concept of mimesis is not precise, but it has two important, though not entirely distinct, strands which are based on two kinds of imitation: the imitation found in the indexical symbol, or sign, and the imitation that is found in literary representation. The general notion of imitation that these two strands share is somewhat elusive, but it seems clear that both play and narrative would share equally in it. Further consequences are discussed.