1. Religion in human experience. 2. Religion as a theme of philosophical investigation. 3. Ethical approach to religion.
Robert N. Bellah, Religion in Human Evolution: From the Paleolithic to the Axial Age, Cambridge, Mass., Belknap Press of Harvard University Press, 2011; Mircea Eliade, The sacred and the profane: The nature of religion, translated from the French by Willard R. Trask, New York: Harper and Row, 1961; Jürgen Habermas / Joseph Ratzinger, The Dialectics of Secularization: On Reason and Religion, San Francisco: Ignatius Press, 2007; William James, The Varieties of Religious Experience: A study in human nature, Cambridge (MA): Riverside, 1902; Eric W. Rothenbuhler, Ritual Communication: From every day conversation to mediated ceremony, Thousand Oaks, CA: Sage Publicactions, 1998; Thomas de Aquino, Summa theologiae, IIa-IIae, quaestiones 80-100.