Mirror symmetry is a concept in mathematics and physics that describes a situation where two objects or systems are related in such a way that one can be transformed into the other by flipping it like a mirror image. This idea is often explored in geometry, where shapes can exhibit symmetrical properties, and in theoretical physics, particularly in string theory, where it helps to understand the relationships between different dimensions. In the realm of string theory, mirror symmetry suggests that certain pairs of Calabi-Yau manifolds can be considered equivalent, meaning they can yield the same physical predictions despite their different appearances. This relationship has profound implications for mathematics and theoretical physics, providing insights into the nature of space, time, and the fundamental forces of the universe.