"성사" (Seongsa) refers to the concept of achieving a successful outcome or completion in various contexts, often used in religious or spiritual settings. In many traditions, it signifies the fulfillment of a promise or the realization of a goal, particularly in relation to divine will or intervention. In the context of Korean culture, 성사 can also relate to personal achievements, such as completing a significant task or reaching a milestone. It emphasizes the importance of perseverance and dedication in attaining success, whether in spiritual matters or everyday life.