The ancient jade clasp was given by relatives and friends to outsiders, married girls or people who traveled for blessings. It was also called "Ping An clasp", which responded to Su Dongpo's sentence "Why did you leave?" People are sad and happy, and they are separated and reunited. The moon has yin and yang, and there are gains and losses. Nothing is perfect, even in the past. I hope people will live for a long time and have a good scenery thousands of miles away. "
Therefore, a round jade (round hollow jade, indicating that the giver's heart is empty) is used to represent the meaning of missing and seeking peace. Anyone who travels far or marries far will be given one, and the ancients will tie tassels on it, or simply sew it on the traveler, calling it a "jade buckle" or a "safe buckle".