"... the modern Homo occidentalis is bound to shrink back from the mere idea that the Nile represented a circle, where 'source' and 'mouth' meet, so that there is nothing preposterous in the notion that a Canopic mouth can be found in the geographical North ..." (Hamlet's Mill)

Water runs downhill, from its source high up and down to the sea, where the 'mouth' of the river connects to the sea. Therefore the Egyptian Nile points to the geographical North as the end station (as if it was located at the horizon in the west). It is a more or less straight path, not a circle.

In the cosmos of life curved paths do not describe circles, they describe oscillations, i.e. waves with ups and downs. One wave is more or less the same as the next. Therefore the end of one wave merges with the beginning of next. It is like the pattern of ebb and flood:

From this it is clear that vaha mea glyphs have not been chosen to illustrate beginning simply by cause of the colour red (mea) in the gills of fishes. A beginning can be located where it is dark without any sign of light, and still vaha mea glyphs can be used, for instance as in Gb7-25:

35 35 35
Gb5-10 Gb6-17 (400) Gb7-25 (436) Gb8-30 (472)
364 108 = 3 * 36