[24 hour hint] Since this is a pretty difficult one, here’s a big hint: The band is named after a poem by John Milton.
[Solution] This was a hard one due to the genre, but I loved how the AI captured the two states the subject of the song finds himself in by using the heaven and hell imagery side by side and the depiction of the long stairwell to absolution. Nowhere in the song does it explicitly mention heaven or that ascension, but it does capture the protagonists journey from fear and self-doubt to letting to and wondering why they ever felt that way to begin with quite well.
Sabaton have a way with words, but not the song in question.