The door is an indispensable part of the building, which is both the dividing line of space and the bridge between people and the environment. It carries different functions and symbols, and in different cultural and social backgrounds, the meaning of the door is rich and colorful.

From a practical point of view, the main function of a door is to provide security and privacy. They can effectively block the invasion of the outside world and protect the security of the internal space. In the family, different rooms are separated to form separate living areas, so that people can enjoy peace and privacy in the home. In an office space, doors play a similar role, providing an environment where employees can focus on their work.

However, doors are more than that. They are often seen as symbols of opportunity and choice. People often say that "opening a new door" means welcoming a new stage of life or career development. In a way, the door symbolizes a turning point, a departure from the past and a welcome to the future. When we hesitate in front of a certain door, the heart may be full of expectations for the unknown and nostalgia for the known.

In art and design, the expression of doors is more diverse. From simple modern styles to complex traditional carvings, the design of the door reflects not only functional needs, but also cultural and aesthetic values. The use of various materials makes the door show a different texture, the wooden door gives a warm and simple feeling, while the metal door is cold and strong. Each design conveys a specific emotion and attitude and becomes an important element of the space style.