Spring thunder means.

Spring thunder sting means that before the sting, the thunder calls first, and the 49 th will attack in the dark. In other words, if there is thunder before the sting, the thunder will suddenly move this spring to wake up the animals that are dormant and hibernating in the soil.

Sting, called "starting sting" in ancient times, is the third of the 24 solar terms. When the sun reaches 345 degrees, it is the beginning of Uzuki.

Spring thunder, everything grows. In the past, animals hid in the soil in winter without drinking or eating, which was called "sting"; Speaking of "sting festival", the spring thunder in the sky awakened the secluded animals and called it "Jing". People called this day "Jing".

Sting means that when the weather gets warmer, the spring thunder begins to sound, awakening the insects that are dormant and hibernating underground. "Sting" means hiding.