圍住館驛 They Ringed The Posting House
那昏君如其言,即傳旨,把各門閉了。又差羽林衛大小官軍,圍住館驛。那昏君如其言,即传旨,把各门闭了。又差羽林卫大小官军,围住馆驿。
逐句解 Line by line
The muddled king did as he said, and at once sent out a decree closing every gate.
Fourteen characters, and a capital city is shut up tight. 如其言 — did according to his words — has been the king's whole relationship with this man for three years.
He also dispatched the officers and men of the Feathered Forest Guard, great and small, to surround the posting house.
差 is chāi, dispatched. The 羽林衛 yǔ lín wèi, the Feathered Forest Guard, was the imperial bodyguard from Han times onward — the household troops, not the city watch. The king is spending his own guard on this.
The scene ends the way it began, with the machinery of a functioning state doing what it is told. A decree goes out, the gates close, the household guard turns out, and a walled capital becomes a trap around four travellers who have their exit paperwork stamped and in order.
The pilgrims still know nothing about any of this. Tripitaka is at the posting house waiting for a farewell meal, Bajie and Sha Monk are minding the luggage, and the only member of the party who has heard the order is a gnat on a screen in the throne room.