It is called MNEMONICS. A mnemonic refers to any learning method that helps memory retention. The method makes use of codes, images and retrieval cues to encode information in a manner that allow efficient storage and retrieval. Mnemonics functions by associating information with something meaningful which in turn enhances the brain to have better retention.
Snowball wanted that every animal on the farm be treated the same, no matter the size, or what type they were. He exectued his plans in a way that every animal did their own share of work, and were rewarded for doing such. Napoleon also had this same idea, but was eventually corrupted with the luxuries of the house. Napoleon eventually started to work the animals just like the farmer had done. This reflects their differing goals because it shows the true nature of each character - Snowball, the ready leader. And Napoleon, the corrupted ruler who eventually turned on what was once his views.
The main theme of "The Wanderer" involves the d. pain of homelessness.
The man in "The Wanderer" is deprived of a permanent home, forced to face the elements of nature. By the end of the poem the natural elements of the world are twisted into looking like destructive, monstrous things that beat on buildings and people alike.