cerchio quadrato triangolo

Awareness determines the shape of a circle in its entirety and cannot be followed through visual mapping unless points of attention are mapped out along a line which descends or ascends. The visual path taken between points, is straight and not curved. This means that the visual mapping out of a circle is not what determines the overall shape of a circle.
A square shape, also determined in its entirety through awareness, can be mapped out visually from point to point because its natural shape follows such a visual path.
This is why the circle is the only shape that is solely determined by awareness, its visual construction, having nothing to do with the geometrical construction that distinguishes it from other shapes.