《隋书·列传·卷二十四》
李密见了使者，很高兴，向北面拜伏于地，人臣之礼很恭谨。
密见使者，大悦，北面拜伏，臣礼甚恭。
When Li Mi met the envoy, he was very happy. He bowed to the north and knelt on the ground. The etiquette of the minister was very respectful.
<s>[INST] Kindly elucidate the central themes in this passage in English: 密见使者，大悦，北面拜伏，臣礼甚恭。 [/INST] When Li Mi met the envoy, he was very happy. He bowed to the north and knelt on the ground. The etiquette of the minister was very respectful.</s>
Kindly elucidate the central themes in this passage in English: 密见使者，大悦，北面拜伏，臣礼甚恭。
user
When Li Mi met the envoy, he was very happy. He bowed to the north and knelt on the ground. The etiquette of the minister was very respectful.
assistant