"...Mr. Covey gave me a very severe whipping, cutting my back,causing the blood to run,and raising ridges on my flesh as large as my little finger" Give me a brief analysis on why this passage is an example of imagery?

In this passage, we can see the resuts of the violence enacted upon Douglass' body. The cuts of a whip, the running of blood, the raising of bloodied welts on his back. This passage is graphic, supplying the reader of a picture.... a picture of words. We don't have to physically see the damage done to Douglass' body, the imagery he uses allows us to imagine it......vividly.