Doom is the House Without the Door
entered from the sun
You enter doom from life, from the bright world. The image inverts the usual hell-below metaphor—doom is a house you fall *into* from above.
ladder's thrown away
Not 'the ladder falls' but someone *throws* it. Doom has agency—it locks you in deliberately, like a trap sprung.
squirrels play and berries die
The pairing is odd: trivial animal play next to seasonal death. Both are outside the house, both equally unreachable from inside doom.
hundreds bow to God
Church attendance viewed from isolation. The damned can only dream of communal worship—even religious consolation is 'outside.'