P olls and demographic statistics show that there is enormous religious and spiritual diversity in the United States and throughout the world. This diversity is rapidly increasing and spreading due in part to global communication, travel, and immigration (Pew Research Center, 2015).Significant numbers of adherents to the five major Western, theistic religions (i.e., Christianity, Islam, Judaism, Sikhism, Zoroastrianism) and six major Eastern world religions (i.e., Buddhism, Confucianism, Hinduism, Jainism, Shintoism, Taoism) now live in the United States and Canada (Pew Research Center, 2015). Growing numbers of people, however, are not affiliated with one of the major world religions (Pew Research Center, 2015) but embrace spirituality from within some other spiritual and philosophical perspective, such as transpersonal, humanistic, existential, and Indigenous traditions (e.g., Pew Research Center, 2015; Richards & Bergin, 2014). Others are unaffiliated with a religious tradition but nevertheless consider themselves spiritual (Pew Research Center, 2015). In addition, many people are atheistic or nonreligious. They also face universal human questions about the purpose of life, morality, love, suffering, anxiety, evil, and death (Pew Research Center, 2015;Sedlar et al., 2018).The breathtaking variety in religious and spiritual beliefs in the world makes it challenging for psychotherapists to effectively address spiritual issues during treatment (American Psychological Association [APA], 2017;