For a secular book and reader audience, this chapter may seem controversial for some readers. However, 93% of U.S. adults believe in a higher power (Levin, 2001), and health plays an important role in the spiritual (and religious) life of many individuals. This chapter is not about describing the healing powers of religious beliefs or having a spiritual life. The focus of this chapter is to examine the evidence that links one’s spirituality with health, the role of faith in maintaining healthy habits, and implications for practitioners to include spirituality in properly using the DVM for people of faith. Should spiritual and religious leader become involved in promoting healthy habits among their followers? For selected individuals who believe in a higher power, the answer is “absolutely,” according to numerous studies. First, however, we need to define relevant terms.