《仪礼·乡射礼》
司正从西阶上堂，至阼阶上方主人前受命，然后至西阶上方请宾安坐，宾以俎尚未撤为由推辞。
司正升自西阶，阼阶上受命于主人，适西阶上，北面请坐于宾，宾辞以俎。
The master of ceremony enters the hall from the western steps, approaches the host above the guest steps to receive the instructions, then goes above the western steps to ask the guest to sit down, but the guest declines on the grounds that the sacrificial meat has not yet been removed.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 司正升自西阶，阼阶上受命于主人，适西阶上，北面请坐于宾，宾辞以俎。 [/INST] The master of ceremony enters the hall from the western steps, approaches the host above the guest steps to receive the instructions, then goes above the western steps to ask the guest to sit down, but the guest declines on the grounds that the sacrificial meat has not yet been removed.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 司正升自西阶，阼阶上受命于主人，适西阶上，北面请坐于宾，宾辞以俎。
user
The master of ceremony enters the hall from the western steps, approaches the host above the guest steps to receive the instructions, then goes above the western steps to ask the guest to sit down, but the guest declines on the grounds that the sacrificial meat has not yet been removed.
assistant