Photo: Circle of Circles
“If we focus on the shape of zero, we find a line in the shape of a circle, a curving edge that connects only to itself. Inside the line is space, and outside the line is space: the edge is the edge between space and space, and so it is not an edge at all. This ‘edge that is no edge’ is the fitting symbol of space. From that perspective, every line that defines and gives shape is a symbol—space within, space without: an edge without substance. Every line, every shape returns to zero as the symbol of space. Every beginning, every ending, even every existent!”
…..’Sacred Dimensions of Time and Space, Tarthang Tulku, p. 50