The "Xi Le Pai" (Joy & Happiness Plaque) is a traditional auspicious ornament in Chinese jade art, with a history dating back to the early Qing Dynasty through the late Qing and Republican periods. Typically crafted from precious stones such as Hetian jade or jadeite, it is engraved with the character "喜" (Xi, meaning "joy") or other auspicious motifs, symbolizing peace, happiness, and fulfillment.

Its design philosophy originates from the longing for a blessed life, blending traditional cultural symbolism with modern aesthetics. The character "喜" represents jubilation and continuous good fortune, while "乐" (Le, meaning "happiness") signifies contentment and joy—together embodying a life of wholeness and smooth career progress. The plaque is usually round or square in shape: the circle symbolizes completeness and unity, while the square represents stability and grounding.

In traditional culture, wearing a Xi Le Pai is believed to bring good luck, safety, and health, serving as an important carrier of heartfelt wishes and positive aspirations.