The meaning of this sentence is: looking up to see the vastness of the universe, looking down to observe the numerous things on the earth, it is used to stretch your eyesight and broaden your mind, which is enough to fully enjoy the pleasure of sight and hearing. It is true Very happy.

Source: "Preface to the Collection of Orchid Pavilion" by Wang Xizhi of the Wei and Jin Dynasties

Excerpt:

It is a sunny day, the air is clear, and the wind is gentle and gentle. Looking up at the vastness of the universe and looking down at the abundance of categories, wandering your eyes and wandering your mind is enough to provide you with great visual and auditory entertainment, which is a joy to behold.

Translation:

On this day, the weather is clear and the breeze is warm. Looking up, you can see the vastness of the universe, and look down at the numerous things on the earth to stretch your eyesight and broaden your mind. , enough to fully enjoy the audio-visual entertainment, it is really very happy.

Extended information:

"The Preface to the Lanting Collection" mainly records the visits of top talents from all walks of life in Lanting, expressing their ambitions through flowing water and composing poems, and expressing their love for the universe from shallow to deep. A profound understanding of life.

There are three paragraphs in the full text, which can be divided into happy and sad according to the emotional tone. The first paragraph records various events that happened in a day in chronological order. Most of them are about playing in the mountains and forests and writing poems about flowing water. With "music" as the keynote, the language is concise and concise; the last two paragraphs are inspired by listening to the poem, which makes the author start to think deeply about the universe and life, and also sets the tone for the "sadness" of life. The language is deep and thick.