"At religious instruction classes, I encountered The Pilgrims Progress by John Bunyan, and the sincerity of the traveller in that book was overwhelming"

This quote by Lionel Blue speaks to the power of literature and the effect it can have on an individual. In this case, Lionel Blue experienced The Pilgrims Progress by John Bunyan in a religious instruction class. The genuineness of the traveller in the book was frustrating to him. This suggests that the book had an extensive effect on him, as he was moved by the genuineness of the character. It is most likely that the book resonated with him on a spiritual level, as it is a religious allegory. The quote talks to the power of literature to move and influence individuals, and how it can be utilized to convey spiritual messages. It likewise speaks with the importance of religious guideline classes, as they can be a source of spiritual development and enlightenment.