“先祖” (senzu) refers to one's ancestors or forebears, the individuals from whom a person is descended. In many cultures, including Japanese culture, honoring and remembering ancestors is an important tradition. This practice often involves rituals, ceremonies, and family gatherings to pay respect to those who came before. In Shinto and Buddhism, two major religions in Japan, the concept of ancestors is significant. People may visit graves during festivals like Obon to honor their ancestors' spirits. This connection to the past helps individuals understand their heritage and maintain a sense of identity within their family and community.