小年到十五 春节天天有讲究

People turn the mill and make tofu on the 25th day of the 12th month in the Lunar calendar, as legend says the Jade Emperor will descend and taste the soybean curd residue to experience an austere life.
农历腊月二十五日，人们推磨做豆腐，因为传说玉帝会在这一日降临人间，品尝豆腐渣，体味人间疾苦。

According to Taoist mythology, the Jade Emperor is the Taoist ruler of Heaven and all realms of existence below, including that of Man and Hell. He is one of the most important gods of the Chinese traditional religious pantheon.
道家神话里，玉帝是道家统治者，管理着天界及以下各界，包括人间和地狱。玉帝是中国传统宗教诸神中最重要的神祗之一。