I think the human condition is just baffling for everybody. We are alive for a few decades in a universe that is 15 billion years old and vast beyond our imagining. We define ourselves as having a fixed age of 30 or 40 years when the truth is that at a quantum level there is no part of you that is less than 15 billion years old.
Music provides us with a strange self-generated celebration of the human condition in the face of a universe that is ancient and vast beyond our understanding.
For me, music is an end unto itself but also a way of representing every aspect of the human experience. You can represent joy, despair, confusion, anger and so on.
Complement with David Byrne on how music works.