As the title says…which song still haunts you emotionally? And why? A (freely accessible) link might greatly bring your point across.
Mine would be: (Typhoon - “Empiricist”) https://www.youtube.com/watch?v=9E328pIZWFM
The lyrics go deep and it just touches me. No otherwise special attachment.
“Space Doggity” by Jonathan Coulton still gets me. It’s about Laika, the first dog in space. Also the first dog to not come back from space. Jonathan is a particularly genius songwriter and this one does not disappoint.
https://www.youtube.com/watch?v=YEXqLkj9J10