This sentimentality is the pursuit of ancient people's philosophy of life. There is a positive side to this. If you really ignore life and death and do nothing, where will you be sad? Sorrow contains persistence and urgency in life.
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The conciseness of the preface to Lanting Collection is related to the atmosphere of talking about capital in Wei and Jin Dynasties. Literati in Wei and Jin Dynasties spoke freely, as long as we read Shi Shuo Xin Yu. The content of Qing Tan is metaphysics, which is mainly discussed on the basis of Yijing, Laozi and Zhuangzi. Beautiful speech, beautiful manners, beautiful comments, beautiful expressions, beautiful words and beautiful tones became important contents in Wei and Jin Dynasties.
Of course, later generations are critical of "on China's mistakes", but its influence on all aspects is undeniable. It at least cultivates the concise style of literature. Mr. Feng Youlan said in A Brief History of Chinese Philosophy: "The art of speaking obviously lies in expressing the most pithy thoughts, usually Taoist thoughts, in the most pithy language and the most concise words." The relationship between conciseness and clear talk can be seen.
Baidu Encyclopedia-Preface to Lanting Collection (Preface)