首楞嚴義疏注經 4.139

4.139

人聚可居，故云聚落。迷人，眾生也。聚落，如來藏也。南，性明也。北，所明也。惑，無明也。南相不動，惑故見北，性明無變，迷故立所。此迷妄出，故今徵之令知無生即見，無明本空也。

Where people gather and can dwell is therefore called a village. The confused person is sentient beings. The village is the tathāgatagarbha. South is the brightness of the nature. North is that which is made clear. Confusion is avidyā. The mark of south does not move, yet due to confusion north is seen; the brightness of the nature does not change, yet due to delusion an object is established. This confusion emerges falsely; hence he now examines it to let him know that if non-arising is recognized, avidyā is originally empty.