Songs/films whose depth you didn't realise earlier?

I was watching Awaarapan yesterday and realised how the Tera mera rishta puraana song, was basically about an atheist discovering presence of God around him and his connection to God that he had been denying. And that film was also not a mere masala film but about human trafficking and slavery.

When I first heard that song in 2007, I did not realise its actual intent presuming it must be a romantic song as it had Emraan in it.

So thought of asking members here, which songs or films you, if at all, at any point of time, felt or realised later what actual depth or meaning or significance they had and you had earlier ignored or not realised/noticed earlier when you first watched the song or film?

Co-incidentally , exactly the same song & same profound interpretation it struck my mind in a flash of illumination much later than I first heard the song .

Film: Hamaari Adhuri Kahani

When this film came, nothing excited me to watch it in theatre. Even Songs I ignored as I didn't listen to them properly.

One day at my village, where there wasn't OTT, I was surfing channels & this movie started playing on Set Max. I couldn't find anything else to watch, so give this film a try.

Film, songs completely surprised me, amazing film & above all music is my kind, just brilliant.

I don't know if above fits in this thread or not, just sharing.