Wormwood is green and fragrant.

Before and after the Dragon Boat Festival, the weather is hot and dry, many people are uncomfortable and prone to illness, and there are many snakes, insects, mosquitoes and flies. People hang more mugwort for safety. "Chronicle of Jingchu Age" said: "Ai is a human being, hanging on the door, with poisonous gas." This is because mugwort is an important medicinal plant, which can be used to make moxibustion points for treating diseases and expelling insects.

It is a common skill to explain seasons with specific things, such as "west wind", "yellow flower" (chrysanthemum) refers to autumn, "east wind" and "peach" refers to spring. Here wormwood is green, which also refers to the Dragon Boat Festival, obviously.

From the festival to the Dragon Boat Festival, think twice before you leap.

This sentence is more popular. Literally, it means that on the Dragon Boat Festival, you will miss more and have thousands of thoughts. The first sentence is about time, and the second sentence is about feeling, which is also a common way of writing. It is the same as "I miss my relatives twice every time I wait" in Shandong Wang Wei's "Vacation on the Mountain".

Don't forget Qu Zifu.

The story of Dragon Boat Festival is also used, and Qu Yuan is known as "the ancestor of China's poetry" and "the ancestor of Ci Fu". He is the founder and representative writer of Chu Ci. It is said that he threw himself into the river on May 5th (Dragon Boat Festival). People associate dragon boat racing and eating zongzi with commemorating Qu Yuan, and regard the Dragon Boat Festival as the anniversary of Qu Yuan. I hope everyone will not forget the origin of this sad festival when they are singing and laughing and reuniting for the holidays.

Because of the lack of the last sentence, it is impossible to know whether this poem ultimately expresses the feelings of missing relatives or the criticism of social things, so it is difficult to guess the theme, but these three sentences have made the Dragon Boat Festival very clear. "Think twice" and "Don't forget" also show that this poem is not a simple and lively celebration or an occasion.