According to the relevant information, fifteen shakes the vernal equinox is a lyric in the song Waipoqiao. The vernal equinox is at the end of February or the beginning of March in the lunar calendar, and there are customs in some places. After the fifteenth and sixteenth day of the first month, there is the custom of going to grandma's house. At the vernal equinox, the spring breeze blows and the buds sprout. There is a local custom of going back to grandma's house. This sentence expresses deep love and gratitude to grandma.
Waipoqiao was originally written by the Japanese composer Aoki Yue Guang's Dreams and Shadows. The Chinese version, written by Huang Ming and still singing, is a single in Netease Cloud Music Special Project "Listen, Sea Breeze".