It is a fault in most of my writings that I did not mention at all, or mentioned too briefly and lightly, certain aspects of the quest so that wrong ideas about my views on these matters now prevail. I did not touch on these aspects or did not touch on them sufficiently, partly because I thought my task was to deal as a specialist primarily with meditation alone, and partly because so many other workers had dealt with them so often. It is now needful to change the emphasis over to these neglected hints. They include moral re-education; character building; prayer, communion, and worship in their most inward, least outward, and quite undenominational religious sense; mortification of flesh and feeling as a temporary but indispensable discipline; and the use of creative imagination in contemplative exercises as a help to spiritual achievement.
-- Perspectives > Chapter 2: Practices for the Quest > # 7