Meaning of "Sunday Morning" by Lou Reed

"Sunday Morning" by Lou Reed talks about the feeling of regret and reflection that often accompanies quiet moments like Sunday mornings. The singer seems to be grappling with a sense of lost time and missed opportunities, represented by the "wasted years" and "streets crossed not so long ago." The repetition of "Watch out, the world's behind you" hints at a feeling of being pursued by past mistakes or unresolved issues. The line "There's always someone around you who will call, it's nothing at all" can be seen as a dismissive attitude towards those who try to offer help or insight. Overall, the song captures a sense of melancholy and introspection, mixed with a hint of defiance or resignation towards facing difficult truths.