《太平广记·卷四十二·神仙四十二》
萧颖士于是惊讶地问老人说： 齐鄱阳王就是我的八代祖先，你为什么会认识他？ 
遂惊问曰： 王即某八代祖，因何识之？ 
Xiao Yingshi was surprised and asked the old man: King Qi Poyang is my eighth-generation ancestor, why do you know him?
<s>[INST] Kindly elucidate the central themes in this passage in English: 遂惊问曰： 王即某八代祖，因何识之？  [/INST] Xiao Yingshi was surprised and asked the old man: King Qi Poyang is my eighth-generation ancestor, why do you know him?</s>
Kindly elucidate the central themes in this passage in English: 遂惊问曰： 王即某八代祖，因何识之？
user
Xiao Yingshi was surprised and asked the old man: King Qi Poyang is my eighth-generation ancestor, why do you know him?
assistant