Jewish Psychosomatics: The Human Body and the Patriarchs According to the Zohar HaKadosh
The body and the two arms correspond to the patriarchs, while the head corresponds to Adam.
The right arm is Abraham, the left is Isaac, and the body is Jacob.
The organs inside the body are arranged in the following order:
The liver is on the right, filled with blood, and the spleen is on the left. These are the names of the two klipot—Esau and Ishmael, respectively.
The heart is Jacob, located in the middle. The lungs are Abraham, and the kidneys are Isaac, respectively.
The lungs represent water, the symbol of Chesed, because the lungs absorb all types of fluid in the body.
The kidneys represent fire, which cooks the seed descending from the brain.
When the descendants cause harm to the attribute of Chesed, they are sent into the galut of Edom (Esau), and since Esau’s sword is bile, it is said in Mishlei (5:4): "but its end is bitter as wormwood"—for this reason, the liver and the gallbladder are located next to each other.
When the descendants cause harm to the attribute of Gevurah (Isaac), they are sent into the galut of Ishmael (the spleen on the left).
When harm is done to the attribute of Jacob, the nation remains in the galut of both Esau and Ishmael, as we see in our own days.
Just as a mother washes her young children, so too do the patriarchs cleanse their nation of its sins and impurity, through the merit of the righteous who accept suffering on behalf of the generation.
(Zohar on Pinchas, Sulam, translated by Rabbi Tzvi Nisan z”l)