Hongbao, or red envelopes, are traditional gifts in Chinese culture, typically filled with money. They are commonly given during celebrations such as the Lunar New Year, weddings, and birthdays. The red color symbolizes good luck and prosperity, making these envelopes a popular way to convey blessings and well-wishes. The practice of giving hongbao is rooted in ancient customs and is often accompanied by specific etiquette. For instance, the amount of money inside should be an even number, as odd numbers are associated with funerals. Recipients usually express gratitude and may return the favor in the future, continuing the cycle of generosity.