Virtual reality (VR) is a technology that creates a simulated environment, allowing users to experience and interact with a 3D world through special equipment, such as VR headsets and controllers. This immersive experience can mimic real-life scenarios or transport users to entirely fictional settings, making it popular in gaming, training, and education. In VR, users can look around and move within the virtual space, often feeling as if they are part of the environment. This technology is also used in fields like medicine for surgical training, architecture for visualizing designs, and therapy for treating phobias.