The article holds that it is caused by the following factors:the peotess sentimental and susceptible temperament;the contradiction between her dreams and practical hampers;the long-time separation with her husband and her mental shadow of being lost;the high correspondence of her personal experience and tremendous changes of her time.

Later he became sentimental and susceptible,plaintive and gloomy,the reason lied in his failure in imperial examinations,political attack and persecution,an official career frought with frustrations and demotions.