What metaphors are used in Either/Or by Soren Kierkegaard?

In Book I, Chapter VIII, Kierkegaard explains that release from enchantment, or to be freed of all of one's errors one may have to undo what had been done that was so effective. He uses the metaphor of a song that had enchanted an individual - to free themselves from the spell, the listener had to play the song backwards without making an error: by doing this, the music lost its power of the ones who had heard it.