1. Oranges are often used to symbolize prosperity because of their bright orange color.
2. Oranges are homophonic with "Geely" in some dialects, so they are often used as gifts, meaning good luck.
3. Oranges also symbolize love, especially green and sweet love, because their taste is green and sweet, which symbolizes that love moves from bitterness to sweetness.
In Guangdong, oranges are often used as gifts to express blessings and goodwill because of their homophonic "auspiciousness".
In some historical periods, oranges are also regarded as a symbol of having many children and grandchildren. This kind of implication existed at least in the Song Dynasty, and it was only given and gradually strengthened in the Qing Dynasty.
6. In literary works, oranges are often used to express the feelings of literati, symbolizing loyalty and nobility, and are the spiritual sustenance of literati who have lost power.