Tết Nguyên Đán, also known as Lunar New Year, is the most important and widely celebrated festival in Vietnam. It marks the beginning of the lunar calendar and is a time for family reunions, paying respects to ancestors, and wishing for a prosperous year ahead. The preparations for Tết start weeks in advance, with families cleaning their homes, buying new clothes, and decorating with colorful flowers. During the festival, people visit temples and pagodas to pray for good luck and offer incense. Traditional customs such as giving lucky money to children, preparing special dishes like bánh chưng (sticky rice cake), and playing traditional games are also observed. Tết Nguyên Đán is a time of joy, unity, and reflection on Vietnamese traditions and values.