How did "poetic and picturesque" develop into the dominant idea of China's garden design?

China's gardening art has a long historical tradition. From the Wei and Jin Dynasties, in terms of spiritual life, because the literati class at that time loved nature and had a sentimental attachment to the pastoral landscape, the private gardens at that time formed an atmosphere of advocating wildness, which had a certain impact on the gardens with large scale, too many buildings and decorations. Since the Tang and Song Dynasties, many bureaucrats who are also literati painters have built their own gardens or participated in the gardening work. Their life ideas and artistic conception described in traditional literature and paintings have penetrated into the layout and landscaping of gardens, so "poetic and picturesque" has gradually developed into the dominant idea of China's garden design. By the Ming and Qing Dynasties, some painters had become famous landscape designers. It must be pointed out that "poetic" reflected the thoughts and emotions of the literati class at that time, boasted about the pursuit of leisure and elegance, and at the same time made the layout and some specific techniques of ancient gardens in China have a special style of landscape painting, which was quite different from the natural landscape gardens in other countries.