Why did Tang Dynasty regard the reclusive personality spirit as the highest realm of poetry?

Tang Sikong regards the spirit of seclusion as the highest realm of poetry, and advocates that poets pursue ethereal, calm and detached styles in their creation in order to achieve the transformation of rhyme, taste, image and scenery. Driven by hermits or quasi-hermits, poetry creation began to take theme, theme and form as the breakthrough point, breaking the artistic ethics rules of "expressing ambition in poetry" and "writing" promulgated by famous religions and political systems, thus reaching the realm of pure natural landscape aesthetics. After the formation of landscape pastoral poetry, it can be said that it has been continuously developed and perfected from four words, five words to seven words, and its aesthetic standard has been continuously strengthened with people's pursuit of "hermit personality spirit"