This is the idea that the material concerns called the “waters of Noach” are called “נַיְׁיחָא דְׁ רו חָא-a relaxed/satisfied spirit”, which is the aspect of Shabbos.
Like it says (Bereshis 2:3): “For on it [Shabbos] He [Hashem] שָבַת-rested from all of His work,”
As mentioned above, the word “שָבַת-rested” (which is the same letters as “שַבָּת-Shabbos”) is translated by Unkelos as “וְנָח” which means rest and is the same letters as “נֹחַ-Noach” and connected to the phrase “נַיְׁיחָא דְׁ רו חָא-a relaxed/satisfied spirit”.
This connection is: During the six days of creation (and the six days of the week) Hashem’s Kingship expresses itself in being drawn down to create and give life to the worlds; as we find that on the first day of creation “Hashem said let there be light and there was light”, on the second day He said “let there be a sky” and there was a sky, on the third day Hashem said “the earth cover itself with plant-life” and it happened etc., all of these acts of creation happen during the six days of the week called “the days of creation”, and on Shabbos there is the aspect of resting from work and creation, which is the idea of “נַיְׁיחָא דְׁ רו חָא-a relaxed/satisfied spirit” and elevation above, like a person who rests and relaxes from his work.
