Why does he keep all of the lights on?

He keeps all of the lights on for a variety of reasons, including creating a sense of safety and security in his environment. The bright illumination can also help combat feelings of loneliness or anxiety, making the space feel more lively and inviting. Additionally, he may enjoy the aesthetic appeal of a well-lit room, finding it more energizing and uplifting. Overall, it reflects his preference for a vibrant and welcoming atmosphere.