The finishing stage of the knot or spiral pattern often
entails filling the background.
Filling the background opens the paths, loosens the fabric.
What what was at the previous stage a web of lines on an empty surface appears to
transform into a net of threads or of white-limbed nebulae contrasted
against the background.
The background may be thought of as representing a final
principle - the womb of a new creation, that pure potential from which the first point emerged.
The background of the pattern and the emptiness of the page are
symbolically equivalent to the underlying ground of existence.
The background of the pattern itself is symbolic, a
reminder of the underlying ground from which the pattern of the cosmos has been drawn
forth, and to which it will finally return.