I think what the story about Christopher is trying to say is that mathematics can have a similar appeal for those who can learn to appreciate it. But looking at music also shows something else. People's tastes in music vary greatly. One person's greatest and most moving musical performance can be on another person's "hate list" (I am thinking of Disco when I say this). Similar things can be said about art, dance, movies, architecture, games, and sports (and probably much more can be added to this list). In my view, one of the points of a good education is to learn how to see at least a few of these things as rewards instead of as labors. For a mathematician, math is its own reward and there is an argument to be made that a large part of the world truly cannot understand that fact, especially if they have never had an intimate understanding (full on with the proofs using limits) of a theorem like the Fundamental Theorem of Calculus.
But to say that anybody can or should appreciate math is nonsense, just as saying that all persons should love Disco or Abba.