What in the poetry collection shows a new turning point in Dai Wangshu’s poetry?

The last collection of poems shows a new turning point in Dai Wangshu’s poetry. A new turning point appeared in Dai Wangshu's last collection of poems. The first nine songs in "The Years of Disaster" can be regarded as the remnants of his mature creations. The New Year's Day Blessing, written in 1939, shows that the poet's creation has undergone tremendous changes in both thought and art. The successive poems produced are the poet's later creations.