Systole and diastole are conventions used to describe the lower and upper limits, respectively, of the Things, Beings, and various attributes of the Vast, including space and time. The one exception is the Entities, which are absolute and unchangeable.
Systole and diastole are aspects of what is revealed when an intangible such as space or time is iconized as the Six Orbits of Space or the Six Orbits of Time. Each Orbit possesses its own systole and diastole, and the relationships between the Orbits are mediated through them.
As applied to the Six Orbits of Space, the orbits’ systole is that part which gulfs the Red Garden at the center of Anesidore. The Six Orbits of Space are uniformly tenspan in height and tenspan in width at their systole. At their diastole they are hundredspan in height and hundredspan in width.
As applied to the Six Orbits of Time, systole refers to the midpoint of the orbit, exactly one half of the Orbit. In time-keeping, systole refers to one-half of the measure of its Orbit.
Diastole
With regard to Space, diastole refers to the large extreme of things, the point past which something can expand no further, without becoming something else.
As applied to the Six Orbits of Space, diastole is that part which bodies the apertures of Rose Window and Remembry at the outermost of Anesidore. The cross-section of diastole of each of the Six Orbits of Space is uniformly hundredspan in height and hundredspan in width. At systole the Six Orbits of Space are tenspan in height and tenspan in width in cross-section.
As applied to Time and to the Six Orbits of Time, diastole refers to the coincindent beginning and end points of the Orbit. In time-keeping, diastole refers to the start of the measure of its Orbit.