The tradition of carved jade disks called a bi began in China before the invention of writing. Dating back to Neolithic times, it's believed they represent the heavens. Later as the culture changed, so did the meaning and the value of the more contemporary jade bi. There are similar shapes in the local design vernacular of other cultures too. Old world and New, East and West, these flat circular forms have found their forever homes in gardens. When you see them in so many different cultural milieus, the realization is that this is truly a universal sculpture. Such large forms belong in gardens where a sense of the spiritual is not defined by religious icons.