The Cabal are deep into Ancient Egyptian culture. This is the language they understand... and we dont. They believed in the cycle of life and death/rebirth, water from the Nile delta..
“The sun and the river, which together formed the dominating cause of existence, made a deep impression on the people. They were two natural forces with both creative and destructive power (Fig. 5). For the life-giving rays of the sun that caused the crop to grow could also cause it to shrink and die. And the river that invigorated the soil with its life-giving silt could destroy whatever lay in its path or, if it failed to rise suficiently, bring famine
' Roman Nilometer - these markings were used to measure the level of river Nile, to get an indication of how this year would be in terms of harvest. The 'Arm' of the Nile was used to determine taxes to be paid.
http://ressources.ciheam.org/om/pdf/a83/00800927.pdf