Drawing on phenomenology and his clinical practice, the author explores religious experience and the dynamics of the numinous. The article opens with the argument that psychoanalysts, like religious healers, should be able to work with religious phenomena as part of psychoanalytic therapy. The origin of the term 'numinous' is explained, and two types of human religious experience, mysterium tremendum and fascinans, are detailed. The role of anxiety in converting a metaphorical illusion (fascinans) into a private symbol (mysterium tremendum) is described. The terms by which religion can be viewed alternatively as delusion, illusion, and tenable speculation are discussed. A patient's religious concerns with the sacred and the profane are presented as symptoms of the repression of numinous experiences. Therapy can be promoted through a psychoanalytic dialogue on the patient's religiosity and its partial replication of early object relations.