Boundless.
"Why do you stay here?" the Moon asked the Sun. The Sun almost laughed hearing the question.
"Why? The people down below are the people that I give light. They look up to me, day and night, to keep them alive, away from fright." The Sun could see the Moon's dissatisfaction in the answer. "This is my calling, the one that I follow. I believe this is where I am supposed to be, to help these people live happily. Hopefully, one day you'll see, you'll see the people that I love, oh so dearly.
"But again I'll ask why do you care? Just let these people do what they dare. I find that mighty unfair, come fly with me away into the air." The Moon begged the Sun.
"I'm going to stay, until the day I turn grey. Sunday till Saturday. This is my only way." The Sun replied.
"Your way is not mine. You want to stay? Fine. But now is when I draw the line, today I have grown a spine." The Moon shot back.
"But you must stay with me. These people, they love you like family," begged the Sun.
"No, I'll dance among the stars. Maybe even with Venus and Mars."
"No, you have to shine. These people, without you, will decline."
"Let them for all I care. I, unlike you, will let them do as they dare." The Moon flew off into the night. Leaving the Sun and the people it watched behind. Leaving it's entire world to see what's beyond.
"I'm finally gone, I've become a new spawn. I will go on, and on, and on, until I no longer feel as if I'm a pawn." And so the Moon did. Off he flew beyond the Solar System. Far into space. He set off to the stars, the stars he always watched. The stars he always glanced. The stars that always danced.
The stars he finally met. They all seemed so cheerful and happy. All dancing wihout a care, why wouldn't they? And so the Moon did too. For months at a time he'd dance and dance. Never stopping. Never caring. Then one day the Moon asked, "We should do something new. Should we watch someone paddle a canoe? Maybe see someone trip on a shoe? Surely, we can see those trapped in the zoo!"
"We don't do that here. I'm sorry if that was unclear," replied one of the stars. The Moon remembered that there is only one Earth, one planet with human life. The Moon soon began to dance again, for months at a time. Never stopping. Never caring. But the Moon soon began to grow tired of dancing. For what were they dancing? For what purpose?
For what meaning? The Moon began to see the people as the Sun did. The Moon began to want to help the people as the Sun did.
"I must go fellow stars. I must go mend my scars," the Moon announced.
"Back to your Earth? Why do you lower your worth?" the stars asked.
"You see, they are my glee. My responsibilty. So now I flee, I must go back, go back to my family." And so the Moon did. Flying across the air back to the Sun, and back to the Earth that it so dearly missed.
"Hello Sun, I'm sorry. But I've changed, I know you can see. Please accept me back, I beg I plea. I want to help, I want my responsibility."
The Sun replied, "I'm glad that you're back. The humans are now way off track, most of them acting like a maniac. Go, go set up shack." Delighted the Moon flew back to his place.
"I made the right choice," the Moon said. "I've nothing to do but rejoice." And so the Moon did, it started to dance. The Sun saw, and too started to prance.