And you support yourself by your sage’s statement more than all of them, since you are the Leviathan of the sea of the Torah. For the master of all fishes is called Leviathan, named after the Torah of which it says, “for they are a graceful garland for your head” (Proverbs 1:9). By you, “Hashem, You preserve man and beast” (Psalms 36:6). Of man, it has been said, “when a man dies in a tent” (Numbers 19:14), and the sages of the Mishnah have stated that the Torah is maintained only by whoever is willing to die for it, death being no other than poverty. ‘Beast’ refers to the ignorant, who are submissive like horses and mules to the sages of the Mishnah.
In the meantime the Holy Luminary came. The Faithful Shepherd opened and said, Mishnah sages, who is the Leviathan? The Holy Luminary answered him, it is he whose grade is the Central Pillar and a righteous man of whom it says that we consider his body, and member of the covenant, as one. And he grows in that sea, which is supernal Ima, which is a sea where the Holy One, blessed be He, is unified in 25 and 25 letters [The Shema and the prayer “Blessed be…”], the numerical value of which is that of ‘yam’ [“sea”], and who is in it? The Faithful Shepherd said, surely this Leviathan stands on the beach and the world is poised on his fins, [as this Leviathan] is, “the righteous is an everlasting foundation” (Proverbs 10:25). The Holy Luminary said, Blessed is your portion, Faithful Shepherd. – Zohar, Ki Tetze, 66-67