张炎词的梦事书写，对于词上下片结构调控、虚实转换具有重要作用。位于词前尾与换头处的“梦”能够调控上下片时空变换节奏，令词中的时空完成陡转的同时保持意脉的流畅。此二处的“梦”也能起到令词在上下片间完成双重转折的作用，从而令词境与情感表达更加复杂含蓄。张炎词前尾换头处的“梦”，不仅是词人在词结构方面的精巧雕琢，也暗合了词人曲折的思维情感路径，蕴含了其复杂的遗民情感，发展了词前尾过片的表达作用，是其“清空论”的一种实践。

Dream writing at the front and end of Zhang Yan's double-tone words plays an important role in the regulation of the structure of the upper and lower parts of the words and the transformation of the virtual and the real. The "dream" at the front end and the head change can regulate the rhythm of the time and space changes in the upper and lower films, so that the time and space in the words can complete the steep turn while maintaining the smoothness of the mind pulse. The "dream" in these two places can also play the role of making the word complete a double transition between the upper and lower films, thus making the word context and emotional expression more complicated and subtle. The "dream" at the beginning and end of Zhang Yan's words is not only the poet's ingenious sculpting in terms of word structure, but also coincides with the poet's tortuous thinking and emotional path. The expressive function of the film is also a practice of its "empty theory".