Cyclic models are theoretical frameworks in cosmology that suggest the universe undergoes infinite cycles of expansion and contraction. In these models, the universe expands from a singular point, similar to the Big Bang, then eventually slows down, stops, and reverses into a contraction phase, leading to a new singularity. This process repeats indefinitely, creating a cycle of rebirth for the universe. One prominent example of a cyclic model is the Ekpyrotic Universe theory, which posits that our universe results from the collision of two three-dimensional worlds in a higher-dimensional space. This collision creates a new universe, leading to a cycle of creation and destruction, challenging traditional views of a linear universe.