The document provides an overview of the Lunar New Year, particularly Tết, which is the most significant celebration in Vietnamese culture, marking the arrival of spring and the new year according to the Vietnamese lunar calendar. It details traditional foods such as bánh chưng and xôi gấc, customs including annual house cleaning, honoring ancestors, and common activities during the celebration. Additionally, it includes common greetings exchanged during Tết, emphasizing familial connections and well-wishes for health and prosperity in the new year.