The legend of the ring comes from ancient Greek mythology. It is said that Prometheus, a famous tragic hero in Greek mythology, was the first person to use the ring. Legend has it that Prometheus was punished by Zeus for stealing fire from humans. Zeus tied him to Mount Kaukassus, and sent an eagle to the mountain every day to peck at his internal organs, so that his lost organs would grow back at night. Just keep going, suffering from the pain of focusing on life and death every day. Later, Hercules killed the eagle and rescued him. The chain that bound him became his ring. Later, the ring represented the meaning of mutual maintenance and help. There is also a legend that Zeus captured the beautiful Princess Europa with an exquisite ring, so the ring is regarded as a symbol of love and auspicious thing.

With the progress and development of the times, the meaning of the ring is constantly changing. In ancient society, rings were enshrined in temples, similar to Guanyin and various bodhisattvas now enshrined. Rings are usually beautiful rings made of jade, and people infer that rings represent people's worship of the sun and the moon. In ancient Rome, the ring was the token of the king's order, and the herald used the ring engraved with the king's seal to convey the order, so the ring had the meaning of loyalty. Up to now, the most important meaning of the ring is love and marriage, symbolizing loyalty and love.