What's the meaning of ,' Nightmare dressed like a daydream '?​

- "in the declaration of independence, it is stated that all people have certain rights that can't be taken away. when the government fails to protect these rights, the people have no choice but to remove that government and replace it with a government that will do its job and protect the people's rights."

normally working animals are domesticated and ruled by a master, a domesticator (tamer), to perform basic and important functions on a farm, for example. the value used in this context is animal labor in exchange for food. it is not so much a contrast to the story told by napoleon and the pigs, since the animals of that particular farm also performed functions on the farm through domestication. the only thing is that in this case, who rules them is a pig, also an animal, but very respected, to whom the other animals lent him submission. that's about a strong relationship of dependency between animal and owner.