Holy Zohar text. Daily Zohar -358.

Tikkun 21 – 99

The spleen is the aspect of the sword of the angel of death. It was told to Esau that, it is the aspect of the angel of death. In Genesis 27:40 Isaac ‘blessed’ Esau “ וְעַל-חַרְבְּךָ תִחְיֶה, וְאֶת-אָחִיךָ תַּעֲבֹד”
“And by your SWORD you shall live, and you shall serve thy brother”

The Zohar brings the reference of the Spleen as the sword from Proverb 5:4
“וְאַחֲרִיתָהּ, מָרָה כַלַּעֲנָה חַדָּה, כְּחֶרֶב פִּיּוֹת”
“But her end is bitter (in Hebrew, Spleen) as wormwood, sharp as a two-edged SWORD”

Arteries lead to the liver and veins out of the liver. The Zohar says that there are 70 arteries in the liver against the 70 ministers of the world. The liver and the lobe of the liver, counted as two, make a connection to the 72 spiritual ‘bridges’ in this world. They are in the middle of the circulation system and control it. Because the liver is between ‘running’ blood from the heart and ‘returning’ blood back to the veins, it controls the life of the body and has some ability to regenerate its own cells.

Keeping our blood ‘healthy’ with positive actions (see previous Daily Zohar) increases the ‘light’ in the body and takes away from the negative control of the liver on it.
When we contaminate the blood with negative actions we increase the force of gravity on the body until it falls down to death.