It is a poem written by Chao Cai, a woman from the Tang Dynasty.
In ancient China, first-married couples would each cut off a lock of hair on their wedding night and tie them together to express their love for each other. From then on, the couple would remain in love with each other.
Original poem: Nong is cutting off her hair, and Lang is also dividing her hair. Look for a place where there is no one, and make a knot of one heart.
It is straightforward, passionate, true and beautiful, and moving.
Your long hair ties your heart together, luckily we won’t forget you!