The drum sound establishes the whole architecture before the song needs words. Everything else enters inside that huge, slow-moving body.

Voice and harmonica sit inside the same flood pressure. The section does not advance by surprise; it confirms the scale of the ground.

Returns of vocal, harmonica, and guitar color do not break the central motion. Structure makes disaster feel sustained rather than sudden.

The later stretch keeps moving after the lyric situation is already clear. The fade matters because the force seems to continue beyond the recording.