What is Fortune Blue _ Fortune Blue?

The fortune teller said that when I was over 36, I took off my red robe and put on my blue one. How do I understand this red robe for blue robe?

In ancient times, a plague broke out in Beijing, and almost everyone got sick. Once they have it, there is no cure. When Chang 'e saw this scene last month, she was very sad, so she sent Jade Rabbit to treat the people. Jade rabbit turned into a girl. She went door to door and cured many people. In order to thank Jade Rabbit, people gave her things in succession. Yutu wants nothing but to borrow other people's clothes to wear. Wherever she goes, she has to change clothes. Sometimes she dresses like an oil seller, sometimes she looks like a fortune teller ... sometimes she dresses like a man and then dresses like a woman. In order to treat more people, Yutu rode his horse, deer, lion and tiger all over the capital. After the plague was eliminated in Beijing, the Jade Rabbit returned to the Moon Palace. Therefore, people created the image of Jade Rabbit with clay sculpture, including those who rode deer, those who rode phoenix, those who wore armor, and those who wore various work clothes. It was very cute. Every day on the fifteenth day of the eighth lunar month, every family will worship her and give her delicious fruits and beans as a reward for her good luck and happiness. She is also affectionately called "Grandpa Rabbit" and "Grandma Rabbit". Rabbits are well-known in Beijing, so many proverbs and allegorical sayings related to rabbits have been derived, such as "rabbit's flag-one-on-one", because the rabbit's flag has only one side; There is also the "rabbit every other year-teacher Chen's son", because rabbits are made of mud and rarely can be preserved until the next year. So, if you see the son of the rabbit made last year, it belongs to the old rabbit.