Researchers contend that committing to an inspiring purpose in life is an important component of healthy identity development for adolescents; however, little research has focused on how identity and purpose develop together. Therefore, the study followed a sample of eight adolescent purpose exemplars for five years in order to develop a grounded model of the way these two constructs interact. Findings suggest that for adolescent purpose exemplars, the processes of identity formation and purpose development reinforce one another; the development of purpose supports the development of identity, and the development of identity reinforces purposeful commitments. Furthermore, in the adolescent purpose exemplars' lives, the purpose and identity constructs largely overlap in such a way that what individuals hope to accomplish in their lives serves as the basis of the adults they hope to become. Implications of these findings are discussed.