존재 (Existence) refers to the state of being or having reality. It encompasses everything that is present in the universe, including physical objects, living beings, and abstract concepts. Philosophers often explore the nature of existence, questioning what it means to exist and how we perceive reality. In various fields, such as philosophy, science, and theology, existence is examined from different perspectives. For instance, in philosophy, existentialism focuses on individual experience and freedom, while in science, existence is often studied through empirical evidence and observation. Understanding existence helps us grasp our place in the world.