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"To the barber! Belts and shoes in hand, I let myself be dragged off to the barbers . They took our hair off with clippers, and shaved off all the hair on our bodies."
Though I can't see all the answers here's my take:
The author was making a point that Voltaire's humor was not welcomed because it criticised their beliefs and the book was banned because it was full of his criticising humor that they did not appreciate.
This statement shows how our state of mind and our emotional and psychological balance can influence our real life for better or for worse, that is, our life is a mirror of how we are feeling inside.
With this we can conclude that when we are emotionally well, we act, act and do our daily actions in a pleasant and positive way that reflects in our life that becomes good and of quality.
However, when we are badly with ourselves and emotionally and psychologically unmotivated, negative, melancholy we pass this feeling on to everything we do, which makes our life bad, uncomfortable and sad.