Nikolai L. Muskhelishvili - PhD (Biology), Doctor of Psychology, Full Professor, Professor of the Center for the Study of Religions of the Russian State University of the Humanities. Rector of St. Thomas Institute of Philosophy, Theology and History. Member of the Advisory Council on Theology of the Higher Attestation Commission under the Ministry of Education and Science of the Russian Federation. Chief researcher of the Institute for Information Transmission Problems of RAS, professor of the Center for the Study of Religions of the Russian State University for the Humanities, member of the editorial board of the international journal "Psychology of Religion", member of International Association of Psychology of Religion, Honorary Professor of UNESCO. Editor-in-chief of the journal of Christian culture "Symbol", deputy editor of "Point/Puncta" journal, member of the Scientific Council "Bibliotheca Ignatiana" (Theology. Spirituality. Science.), member of the editorial board of the international journal "Kulturno-istoricheskaya psikhologiya", member of the Academic council of the Institute of Sinergy Anthropology. Professional interests: religious experience, mystical and other altered states of consciousness, prayful practice. Author of 85 works, 3 monographs, 3 textbooks and education guidances.