+1 John Lennon - Imagine
If the OP means which lyrics spoke to one on a personal level, then that’s a different answer.
Imagine by Lennon is the liberal love song. No God no heaven?Meets the OP “The Most Philosophical Song You Ever Heard”, don’t necessarily agree with the philosophy.
Title should be “Nightmare”!
If the OP means which lyrics spoke to one on a personal level, then that’s a different answer.