Virtual reality is a computer-generated 3D environment that can be interacted with by the user. It aims to fully immerse the user by engaging multiple senses. The document discusses both benefits and drawbacks of VR, including its potential to treat mental health issues, foster relationships, provide escapism, and influence various industries like marketing, journalism, and social media. However, it may also cause issues like developing false realities and addictions. The document also outlines both expensive and inexpensive ways for users to experience VR.