The Kalam cosmological argument is a philosophical argument for the existence of God. It asserts that everything that begins to exist has a cause. Since the universe began to exist, it must also have a cause, which is often identified as God. This argument is structured in three main points: first, the universe began to exist; second, anything that begins to exist must have a cause; and third, therefore, the universe has a cause. Proponents argue that this cause is outside the universe and timeless, leading to the conclusion that it is a necessary being, often equated with God.