The buildings [halls] were in decay, the fences and walls corrupt, the bases of the pillars rotten, and the beams and ridgepoles tilting and slanted.

The realm of sensuous desire (kāmadhātu) is the “hall.” The two upper realms are “chambers.” Gradual decay is “rotting.”

Various delusions are prevalent in the four directions: they are referred to as walls. To do what is not good and what must be overcome is referred to as crumbling.

False views dwell in it: they are “pillars.” Going astray from li, one is not stable: one has “decayed.”

[The beings] are brought to realize that they are in a state of ignorance and [self-]love; they [ignorance and self-love] are “beams and ridgepoles.” li can easily take them off: they are “precariously tipped.”