a) The opposite of a covenant (consenting to suggested) implies a break (perception within perceivable)...

b) Arc implies part (life) of a curved line (inception towards death)...

c) The arc of a covenant implies a "shortcut" from one to another, hence dual-ism (two of the same kind).

d) Perception within perceivable implies reacting to activity; while consenting to suggested puts one to rest, hence noah/noach - "rest"... https://www.etymonline.com/search?q=noah

Rest (noah) cannot save animation (animals)..