Spirituality is as an individual, dynamic, and a complex concept. Meleis's theory includes spirituality in many aspects, and looking at this dimension within this specific theory may help in understanding spirituality as a critical dimension in transitions, as processes, but also as a dimension of self–transition as individual development and growing. Therefore, spirituality is an inherent and integral element of the several foundations of this theory, especially in nursing therapeutics, patterns of responses and transition conditions (facilitators and inhibitors).