The awakening to spiritual perception can only follow from a healthy life during the day, just as the awakening to a healthy life during the day can only come about from a healthy sleep not disturbed by illness. Everything whereby man is in some way alienated from the realities of life, all that people search for out of folly, prejudice, false asceticism, aversion to life, living in mystical twilight or mystical darkness – all that the spiritual scientist needs to ban from his life. To stand properly in everyday life, face to face with practical reality, that is the best preparation for entering the spiritual world.
Source (German): Rudolf Steiner – GA 72 – Freiheit, Unsterblichkeit, Soziales Leben – Basel, 19th October 1917 (page 78-79)
Translated by Nesta Carsten-Krüger