It is interesting how author made each planet a character. They were all "brothers" and needed to help each other in order for their harmony to remain. This is very relevant in our life on Earth. Even if we do not always notice, each living thing of this planet depends on another thing to live, which depends on another thing to live, which depends on another... and on and on.
For example, an animal in the wilderness eats plants (and other animals) in order to survive. After eating these plants, the animals go to the bathroom and worms and other insects eat the nutrients in the animal's waste to survive. As the insect is crawling around, it produces waste too. The insect's waste provides nutrients for the plants to grow... which feed the animals... and the cycle repeats.
That is a mini chain of how dependent each living thing is on another. Similarly, we depend on nature to provide us with oxygen, food, water, and many other things. BUT- nature depends on us to keep it healthy and clean... or else it won't be able to survive and feed the animal which feeds the insect which feeds the plant which feeds the animal....
This chain is what Uranus saw. He "faithfully believes that we are all connected, and our existence has only significance if we help each other". Which is why he thought it was necessary to help planet Earth; because his and the "brothers'" harmony would not work if there was no harmony within planet Earth.
Pluto said that he admires people who will act upon what they believe in because "they are the ones who transform and make the greatest changes for the benefit of our universe."
This quote was relevant in this short story because at first, some planets did not agree with Uranus' desire to help planet Earth. Eventually, Uranus did put his efforts in to help create harmony on Earth between its inhabitants and its environment. And because Uranus put in his effort, he created positive changes within Earth and within their "brotherhood".
It's clear that the message this short story was trying to portray was that everything depends on each other. If there is not harmony within a small portion of the "big picture", there is no way there could be harmony within the "big picture". The short story also demonstrates the importance of acting upon what one believes in because Uranus believed it was important for them to help Earth. Because he did was he believed in, he obtained his goal and accomplished harmony within all of the universe.
