《汉书·传·韦贤传》
祭祀书上说： 君王敬祭自己祖先的父亲，让太祖的神主一起受祭，从而建立四个庙。 
《祭义》曰： 王者禘其祖自出，以其祖配之，而立四庙。 
The Book of Sacrifices says: "The monarch respects and sacrifices his ancestor's father, and the Taizu's god is sacrificed together to build four temples.
<s>[INST] Kindly elucidate the central themes in this passage in English: 《祭义》曰： 王者禘其祖自出，以其祖配之，而立四庙。  [/INST] The Book of Sacrifices says: "The monarch respects and sacrifices his ancestor's father, and the Taizu's god is sacrificed together to build four temples.</s>
Kindly elucidate the central themes in this passage in English: 《祭义》曰： 王者禘其祖自出，以其祖配之，而立四庙。
user
The Book of Sacrifices says: "The monarch respects and sacrifices his ancestor's father, and the Taizu's god is sacrificed together to build four temples.
assistant