“אֵלֶּה, תּוֹלְדֹת נֹחַ–נֹחַ אִישׁ צַדִּיק תָּמִים הָיָה, בְּדֹרֹתָיו: אֶת-הָאֱלֹהִים, הִתְהַלֶּךְ-נֹחַ”
“These are the generations of Noah. Noah was a righteous man, blameless in his generation. Noah walked with God.”
The Torah calls Noah a ‘Righteous man’. The Zohar quotes Proverb 10:25 “וְצַדִּיק, יְסוֹד עוֹלָם” “And the righteous is a foundation of the world”.
The upside image of the Tree of Life explains why the righteous, who is the man that holds to the Sefirah of Yessod is called ‘foundation of the world’.
Kabbalah teaches us that Keter is the root of everything, and through a process, the Light moves from one Sefirah to another, all the way to Malchut. Yessod is the one that gathers all the lines into one to feed Malchut. Without Yessod, Malchut would not exists.
Remember that our vision of this world is only an interpretation of out five limited senses. Our eyes see the world around us upside down and the brain makes the ‘correction’ or maybe the ‘corruption’ of the true image. The Zohar calles this world a ‘world of lies’ because what we see is not true.
The righteous have the power to draw the light from all the Sefirot above/below to feed Malchut.