At night, a string of colored lanterns is hung under the kite or on the wind-stabilizing stay, like twinkling stars, which is called "magic lamp".
Someone used to put kites in the blue sky, then cut the strings and let the breeze send them to the ends of the earth. It is said that this can eliminate diseases and disasters and bring good luck to yourself.
Extended data:
The weather in Tomb-Sweeping Day is usually around April 5th of the Gregorian calendar, that is, the first15th day after the vernal equinox.
It's a long time to pay homage to Tomb-Sweeping Day, 8 days before 10 and 10. These nearly 20 days belong to the Tomb-Sweeping Day period.
Tomb-Sweeping Day, Dragon Boat Festival, Spring Festival and Mid-Autumn Festival are also called the four traditional festivals in China.
On May 20, 2006, Tomb-Sweeping Day declared by People's Republic of China (PRC) and the Ministry of Culture was included in the first batch of national intangible cultural heritage (category: folk customs; No.: X-2).
References:
Baidu Encyclopedia: Tomb-Sweeping Day