1. S. Katz (ed.), Introduction toMysticism & Religious Traditions, Oxford: Oxford University Press, 1983.
2. S. Katz (ed.),Mystical Experience & Philosophical Analysis, London: Sheldon Press, 1978.
3. N. Smart, “The Purification of Consciousness”, Katz (1983),, pp. 117–129.
4. R. M. Jones,Studies in Mystical Religion, London: Macmillan, 1909, p. xxxiv.
5. See e.g., M. Eliade,The Two & the One, London: Harvill, 1965; H. P. Owen, “Christian Mysticism”,Religious Studies, 7, 1971, pp. 31–42; B. Garside, “Language and the Interpretation of Mystical Experience”,International Journal for the Philsophy of Religion 3, 1972, pp. 93–102; P. C. Almond, “On the Varieties of Mystical Experience”,Sophia 18, 1979, pp. 1–9.