These two poems mean that when Zhou Yu was in Battle of Red Cliffs, he was able to successfully burn Chibi with the help of the southeast wind. If Dongfeng didn't provide convenience for Zhou Yu at that time (in the absence of Dongfeng, Zhou Lang was Zhou Yu), then the winner of Battle of Red Cliffs was Cao Cao who attacked Dongwu, and the beauty and Xiao Qiao in Jiangdong could only be taken away by Cao Cao and brought back to Tongque Terrace in Yecheng (Tongque Spring was locked in Er Qiao). There is a saying that Cao Cao attacked Wu Dong in order to get Da Qiao and Xiao Qiao, which was adopted by Zhuge Liang in the Romance of the Three Kingdoms when he was reciting poems on the bronze sparrow terrace.
Answer finished, I hope it will help you.