Oka is a type of traditional Japanese rice cake made from glutinous rice. It is often enjoyed during festivals and special occasions. Oka can be sweet or savory, and it is sometimes filled with ingredients like red bean paste or wrapped in leaves for added flavor. In addition to its culinary uses, the term "oka" can also refer to a concept in Japanese culture, symbolizing the importance of family and community. This reflects the deep-rooted values of togetherness and sharing, which are central to many Japanese traditions, including those surrounding food and celebrations.