Why did the rabbit run to the moon with Chang 'e?

If you ask about allusions, there are several versions: First, Hou Yi, the leader of a tribe at that time, took the beautiful woman Chang 'e home as his wife, and nine days later, she was given the elixir of life by the Queen Mother of the West. After taking this medicine, she immediately became immortal, and Hou Yi collected it at home, hoping to choose a good day and fly into the fairy world in front of everyone. Chang 'e wanted to escape from Houyi, so she stole the fairy medicine when Houyi was not at home. Chang 'e was afraid of being poisoned before taking the fairy medicine, so she gave it to the rabbit first, but because the rabbit and Chang 'e only ate half a pill and couldn't escape after flying to the moon, they stayed on the moon forever ... I heard it when I was a child ... The second one is recorded now ... It is said that in ancient times, there were ten suns in the sky, which made the earth smoke and the sea dry up, and ordinary people could not live any longer. This incident alarmed a hero named Hou Yi. He climbed to the top of Kunlun Mountain, drew his bow and shot down nine redundant suns in one breath. Hou Yi has made great achievements in the world and is respected and loved by the people. Many people with lofty ideals come here to study and be teachers. The treacherous and cunning Meng Peng also mixed in. Soon, Hou Yi married a beautiful and kind wife named Chang 'e. Besides hunting, Hou Yi spends all his time with his wife, and people envy this beautiful and loving couple. One day, Hou Yi went to Kunlun Mountain to visit friends and seek truth. He happened to meet the Queen Mother passing by and asked her for a bag of elixir. It is said that taking this medicine can immediately ascend to heaven. However, Hou Yi was reluctant to leave his wife, so he had to temporarily give the elixir to Chang 'e. Chang 'e hid the medicine in the treasure chest of the dresser, but Pang Meng saw it. Three days later, Hou Yi led his entourage out hunting, while Pang Meng, who had ulterior motives, pretended to be ill and stayed. Shortly after Hou Yi led the crowd to leave, Pang Meng broke into the backyard of the Inner Temple with a sword in his hand, threatening Chang 'e to hand over the elixir. Chang 'e knew that she was no match for Pang Meng. In times of crisis, she made a decisive decision, turned around and opened the treasure chest, took out the elixir and swallowed it in one gulp. Chang 'e swallowed the medicine and immediately floated off the ground, rushed out of the window and flew into the sky. Because Chang 'e was worried about her husband, she flew to the nearest moon and became a fairy. In the evening, when Hou Yi came home, the maids cried and told what happened during the day. Hou Yi was surprised and angry, and drew his sword to kill the villain. Pang Meng has already escaped. I was so angry that Hou Yi beat his chest and shouted. The grief-stricken Hou Yi looked up at the night sky and called the name of his beloved wife. At this time, he was surprised to find that today's moon is particularly bright and bright, and there is a swaying figure resembling Chang 'e. Hou Yi hurriedly sent someone to Chang 'e's favorite back garden, put on a table sweetmeats, and put on her favorite candied fruit to pay tribute to Chang 'e at the Moon Palace. After hearing the news that the Goddess Chang'e flying to the moon became an immortal, people made an incense table under the moon and prayed for good luck and peace to the kind Chang 'e. That rabbit was only taken away with Chang 'e at that time ... if it was a brain teaser ... because the rabbit was a foreign rabbit, it was the end of the month. Before Chang 'e left, the rabbit asked Chang 'e when to introduce her boyfriend. Chang 'e said with a straight face: Tomorrow. And the rabbit heard the road to the moon, so they ran to the moon together ~