A discussion of the importance of pretend play in adulthood, as well as, the functioning of imagination and creativity throughout the adult years. Vygotsky claimed imagination continues to develop as a Higher Psychological Function, perhaps better described as a psychological system of a higher order. What research evidence is needed to support this hypothesis? And what are the implications for education and the functioning of creative imagination? What would be the implications if pretend play and imagination always remain Lower Psychological Functions that be used along with higher psychological functions?