What solar terms are written in Li Qingzhao's poem "Cold Spring, Residual Smoke in Jade Furnace"?

Every year when Tomb-Sweeping Day comes, the Cold Food Festival follows. So some people will confuse Tomb-Sweeping Day with the Cold Food Festival, which is actually very wrong. One is farming solar terms, and the other is folk festivals. Tomb-Sweeping Day is one of the twenty-four solar terms in the China lunar calendar, usually around April 4th and 5th. The Cold Food Festival is a folk festival, which originated from the story that Minister Jie was burned to death on Mianshan Mountain in Jiexiu, Shanxi Province, and refused to go down to be sealed.

Although the Cold Food Festival and Tomb-Sweeping Day are two different things, one is agricultural solar terms, the other is allusions and folk customs, but the two festivals are separated by one or two days or even coincide on the same day, so there is a saying that Qingming Festival and Cold Food Festival are called the same.

Is the Cold Food Festival Tomb-Sweeping Day?

The Cold Food Festival is not Tomb-Sweeping Day, but the Cold Food Festival and Tomb-Sweeping Day are two festivals.

The Cold Food Festival, also known as "Smoke-free Festival", "Cold Food Festival" and "Hundred Days Festival", is 105 days from winter to the future in the summer calendar, that is, one or two days before Tomb-Sweeping Day. This is the first day of the festival. Smoking is forbidden and only cold food is eaten. In the development of later generations, the customs of sweeping, climbing, swinging, cuju, crochet and cockfighting were gradually increased. The Cold Food Festival was once the largest folk festival, which lasted for more than two thousand years.

Tomb-Sweeping Day is one of the twenty-four solar terms in China, which is at the turn of mid-spring and late spring, that is, from winter to the day after 108. Because the fourteen solar terms objectively reflect the changes of temperature, rainfall and phenology throughout the year, ancient people all carried out agricultural activities according to the solar terms. Qingming comes, the temperature rises and the rainfall increases, which is a good time for spring ploughing and planting. Therefore, this solar term is closely related to agricultural production.