Have you read "The Little Prince?"?

The Little Prince is a story of love, relationship, and friendship... it tells how the protagonist (the little prince) came to learn important life lessons through experience...Personally, it is my most favorite book

The sheep is an "imaginary" pet that the prince requested from the pilot. He (the little prince) wanted a sheep so that when he comes home to his little planet, the sheep will eat the baobab seedlings that can potentially destroy his little planet. You see, the little prince's home is so small that when a baobab seedling grows, the planet will be destroyed. That's why the little prince have to tend the planet regularly and see to it that no baobab seedling will have the chance to grow.

The rose is the little prince's "love". From the story, the "flower" drifted to the little prince's planet from another place, and since it is the first time the prince saw something as beautiful as the rose, he cultivated it and took care of it...However, the little prince eventually had to desert the rose and leave the planet because he thought the rose doesn't love him (the rose finds it hard to express her real feelings for the prince and often drives him away). Nevertheless, even if the prince left the rose, his thoughts and his heart is filled with the rose's memory throughout the story. An additional note: the little prince's relationship with the rose is often compared to the relationship of Antoine de Saint-Exupéry with his wife.

The ending was that the prince got himself bitten by a snake because he longs to get home and be with his rose again. The snake was introduced earlier the in the story, and it was the snake who offered the little prince a "way" to go home again. Now, since the little prince's rose is all alone in his little planet, and his little planet needs to be tended regularly or else it will be destroyed by the baobabs, it can be safely assumed that the rose already died and his home already destroyed (as both the rose and the little prince's home cannot tend to themselves alone). So technically, it means he has no rose and no planet to come home to...and the only way to be with his rose again through death...

No, the little prince didn't turn into a star. The solitary star in the ending of the book just represents the little prince's absence and lingering presence in the life of the pilot...