How could I, a native of Penghao, enter the world of mortals? It means that I was originally a wild man of Penghao who had no desires and was indifferent to fame and wealth. How could I be involved in the world of mortals? According to relevant public information inquiries, this is a line from a poem "Farewell to the Ancient Grassland" written by Bai Juyi, a poet of the Tang Dynasty. The author was originally a person living in seclusion in the basil bushes, but due to fate and fate, he had to step into the world of mortals and enter the bustling and noisy world. This poem expresses the poet's nostalgia for the ancient life and his yearning for the free life in the past. It also expresses his boredom and loss towards the real society.