On February 2nd, pancakes were baked and incense was burned in the hope of driving away poisonous insects with smoke, so pancakes were baked and eaten on February 2nd.
In ancient times, creatures in nature were divided into five categories: caterpillars, feather worms, ostracods, scale worms and humans. Caterpillars refer to furry mammals, feather insects refer to birds, ostracods refer to crustaceans, and scale insects refer to scaly fish and winged insects. Dragons are the length of scale insects, and when dragons come out, all kinds of insects hide.
Before and after the second day of February, insects germinate, diseases are prone to occur, and pests are also natural enemies of crops. Therefore, people hope to use Rowen Town to subdue insects, protect people and animals, and harvest crops. In February of the lunar calendar, the weather is getting warmer and all kinds of insects begin to move. Some insects are harmful to people's health, so on February 2, people spread pancakes and burn incense in succession, hoping to drive away poisonous insects with smoke.
Extended information:
In ancient times, in some parts of northern China, there were customs of hoarding grain, introducing Tian Long, knocking on beams, having a haircut, frying braised pork, eating pork head, noodles, dumplings, candied beans, pancakes and avoiding needlework on February 2nd. For Najib, the food eaten on the second day of February is named after "dragon", and the noodles are called "Longxu Noodles" instead of "noodles".
dumplings are called "dragon ears" and "dragon horns"; Rice is called "Dragon Son"; Pancakes are branded into scales and called "Long Lin cakes"; Noodles and wonton cooked together are called "Longnazhu"; Eating pig's head is called "food faucet"; Eating onion cakes is called "tearing dragon skin". Everything takes symbols and meanings related to dragons.
Baidu encyclopedia-February 2nd
_