《明史·列传·卷二百一十六》
也先便带杨善去见太上皇，设宴替太上皇饯行。
也先引善见上皇，遂设宴饯上皇行。
Also took Yang Shan to see the retired emperor and hosted a banquet for the retired emperor.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 也先引善见上皇，遂设宴饯上皇行。 [/INST] Also took Yang Shan to see the retired emperor and hosted a banquet for the retired emperor.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 也先引善见上皇，遂设宴饯上皇行。
user
Also took Yang Shan to see the retired emperor and hosted a banquet for the retired emperor.
assistant