Circular, triangle, and square

It’s common to use basic geometrical shapes to illustrate breathing sequences; a triangle, rectangles, and circles. My breathing can be symmetric where the inhale and exhale durations are the same (including possible breath-holding time). Asymmetric breathing is all other combinations.

Geometric shapes diagrams

Triangle with the base down – when I add one breath-hold following an exhale.

Triangle with the base up – when I add one breath-hold following an inhale.

Box – when I add two breath-holds, one after an inhale and one after an exhale, where one duration is not equal to the rest.

Square – when I add two breath-holds, one after an inhale and one after an exhale, where all durations are equal.

Circular – when I continuously breathe, as if connecting my inhale to my exhale, eliminating all breath holds.