The structural characteristics of Song of Everlasting Sorrow

The poet adopts a romantic approach, suddenly ascending to the sky and suddenly descending to the earth, "the blue sky above falls to the yellow spring, and neither place can be seen". Later, Yang Guifei was found on the ethereal fairy mountain on the sea, and she reappeared in the fairyland in the image of "a jade face lonely with tears, a pear blossom with spring rain", and she enthusiastically welcomed the Han family's envoys. The poem reiterates the previous oath, reflects Tang Xuanzong's longing for her, and further deepens and exaggerates the theme of "everlasting regret". At the end of the poem, it ends with "It lasts forever, and sometimes it ends, this hatred lasts forever", which points out the theme, responds to the beginning, and achieves "more than enough clear sound", giving readers room for association and aftertaste.