After 1927, Xu Zhimo's thought experienced "twists and turns", and his political ideal in a bourgeois democratic country was completely shattered. On the other hand, he felt fear and resistance to the workers' and peasants' revolution, and his thoughts fell into deep contradiction and despair. During this period, most of his poems were divorced from real life and expressed his own "subtle secrets of the soul". Some poems groan and are full of pessimism. Moreover, his ideological position is against the trend of progressive revolution. He ignored the basic requirements of poetic art and moved naked political concepts into poetry to attack Marxism and proletarian revolutionary literature movement. He relied on Nietzsche's philosophy to encourage himself when he was extremely disillusioned and desperate.
In Tiger and Clouds, the content and form are not unified. Most poems are so vague and poor in content, but they are increasingly pursuing neat arrangement and beautiful form. No matter in the arrangement of poems, the loud rhyme, the clear rhythm and the careful use of words, it has changed and developed compared with previous poems. In this regard, Mao Dun has a very apt comment: "The mellow appearance is accompanied by almost nothing to say, and this extremely light content is nothing more than sentimental emotions-a kind of light smoke-like sadness, a mysterious symbol of attachment and pursuit: these are the characteristics of modern bourgeois poets who have developed to the final stage, and Zhimo is an outstanding representative of China's literary world."