The Gospel of St. John is a book of life, and whoever lives it through will awaken within himself the power to see spiritually. It is a seer’s book, and was written for the training of spiritual vision. Whoever lives it through, sentence by sentence, will experience the great and mighty result, that he meets Christ spiritually face to face. It is not so easy to convince people; they must themselves work up to the stage at which the knowledge dawns upon them that the Christ is a reality.
St. John’s Gospel is the way that leads to Christ, and the writer desired to give everyone the opportunity to understand it. Whoever develops the Spirit Self will experience within himself the dawning of that wisdom through which he can understand what Christ is.
Source: Rudolf Steiner – GA 100 – The Gospel of St. John – Lecture VIII – Basle, 25 November, 1907