Firstly, the lamb represents the perfection of God's creation. Blake comments on the lamb's wool and voice as being examples of God's creation. The lamb also symbolizes Jesus, alluding to the traditional cultural representation of Jesus as a lamb.
The word harrow in this passage means that the writer could narrate a story so hunting that will agonize your soul. A story so twisted that even the lightest words will sound hunting to the reader. The word harrow up, in this case, can be a synonym of <u>torment.</u>
