Math makes the world go round, or at least provides us a language to let us describe the path it takes. Pi is that wonderful little term that we discover when we compare the distance around a circle and the distance from the center to the side.
It’s good to note that Plato – that believer in universal forms – was a mathematician, and saw that our language and mathematics all describe truth that is beyond our ability to grapple with. We recognize that a table is a table because of it’s adherence to universal forms, a Chihuahua and a great dane are both dogs for the same appeal to a universal idea of dogness.
Pi proves the point that there is some universal truth to the idea of a circle from wheels to plastic lids and bowling balls.
It’s more poetic that way in my head, to have pi be something our language appeals to something universal and true. Yet we cannot completely express it.