Do you ever wonder where or how something becomes a part of your interior monologue?

When I need to hurry up and depart I always say in my head, " I got to go, I've got to go. The bomb is in the breadbasket and ready to blow."

Oh, so socially unacceptable! So dark!

Why this strange snippet from Nick Cave and the Bad Seeds 1991 song I'll Love Till the End of the World? Why, brain, why?

https://music.youtube.com/watch?v=9e2X7Kw-ho0&si=xQTOmMQrV559ujeC