The key points of the poem Animals are at ease and satisfied. They never cry out in agony at their plight, as humans do. They never worship God or lament their misdeeds. They are not possessed by the craze or craziness of having and possessing stuff. Thus they are free from evil tendencies. Animals enjoy peace and quietness. They lack ambition and greed. They do not fret over small things and are not bothered by large issues either. This is why they are called "at ease and satisfied." This line also tells us that animals' qualities are opposite to those of humans. While humans have desires and crave for possessions, animals are happy without needing anything else. They do not worry about future consequences. There is nothing wrong if an animal kills another living thing for survival because it has no choice but to do so. Humans on the other hand kill each other all the time for petty reasons like jealousy and greed. Thus we can say that animals are good for humans because they keep us off-balance and help us understand our own nature. Without them, humanity would probably have been destroyed long ago due to wars and other forms of violence. Furthermore, animals provide us with pleasure and joy which make life worth living. If animals were not around, people would probably use their physical strength to get what they want instead. This world would be a very cruel place to live in.