This article compares the physical meaning of infinity with the spiritual meaning. It notes that infinity remains somewhat of a mystery in a physical world in which our comprehension is largely framed around the concept of boundaries. But our sense of the scope and nature of our understanding of finiteness has been gradually expanding with the development of human civilization, and is now expanding at an even greater rate than ever before, both at the micro level and the macro level. The article suggests that if we are ever to understand infinity, we have to move outside the dimensions of this physical universe as we perceive it, moving to that other and higher reality, to the metaphysical, or, as some would describe it, the spiritual. It h...