The author agrees with the approach taken by Aron and Atlas in which they utilize the idea of the prospective function to emphasize the positive aspects of enactment that can be understood to promote symbolization much as dream work does. She welcomes their appeal to the future as an important aspect of intersubjectivity. The commentary on the case of Sophie aims to show the importance of the patient’s activity in collaborating with the analyst as another way that mutuality and play expand the notion of the creative illusion first offered by Winnicott. She also shows how this approach fosters a different idea of the Third than that used by neo-Kleinians, a point first made by this author and Aron. Finally, she suggests ways this idea of the prospective function can be integrated into our understanding of the Third.