Why do we do D/s and M/s? Is it all about play and service, or is there something significantly more intangible at hand? We explore the deeper motivations that drive the dynamic of M/s relationships. How do protocols and rituals strengthen the bonds? What roles do transparency, truthfulness and responsibility take in our expressions of intimacy? What core values of control and power do we share to confirm our identity as dominant and submissive, or Master and slave? And is this about spirituality, or is that just a game we play? We discover the principal foundations at work an d discuss how to incorporate them into our lifestyle relationships.