What feelings does the author express in "Cold in Spring"?

Mei Yaochen's "Cold in Spring" The spring days are cloudy and overcast, and the clouds are thinner and deeper. Butterflies shrink their wings when they are cold, and flowers are unhappy when they are cold. The green curtains move under the trees, and the rain falls on the mountains. The scenery is not worthy of the scenery, and it is difficult to find it due to many diseases. The poem expresses the author's inner sadness and sadness. The spring cold is cold and the wind is blowing every day in Baling in the second month of Yi. The spring cold is not over yet, but Yuan Gong is timid. Begonia does not hesitate to be rouge, independent in the drizzle. The "Jingkang Disaster" indeed caused great changes to the Han people under the rule of the Song Dynasty. Chen Yuyi has a sad and generous feeling while wandering around. Some of his poems passionately praised the nation's war against aggression. Although this poem is written about the natural scenery in the rain, it also reflects the fighting atmosphere of the times.