Lighting is a key factor in making our environment a comfortable one. It affects our daily lives in all aspects, and is used in a variety of situations. First of all, lighting can influence our mood. Proper lighting can create a relaxed and peaceful atmosphere, and make us feel at ease. On the contrary, insufficient or overly bright lighting or the wrong kind of colors can make you feel uncomfortable. In the night, lighting can make the sky look beautiful, and create a romantic atmosphere for couples. In addition, lighting is also important in daily life. We cannot do anything without lighting, such as cooking, reading books or studying. Desk lamps are often used in offices or study rooms, and brighter chandeliers are used in living rooms. Last but not least, safety is a major concern when it comes to lighting. Street lamps on the roadside provide us with illumination on the way home, and help us to avoid potential accidents. They can also help us detect and identify potential criminals and prevent crime. In conclusion, lighting cannot be ignored in our life. With proper lighting, a comfortable and better life can be achieved.