The Torah, “Leviticus” (Tazria), 13:1-13:3: And the Lord spoke unto Moses and unto Aaron, saying: When a man shall have in the skin of his flesh a rising, or a scab, or a bright spot, and it become in the skin of his flesh the plague of leprosy, then he shall be brought unto Aaron the priest, or unto one of his sons the priests. And the priest shall look upon the plague in the skin of the flesh; and if the hair in the plague be turned white, and the appearance of the plague be deeper than the skin of his flesh, it is the plague of leprosy; and the priest shall look on him, and pronounce him unclean.
A priest (Cohen) is a doctor and he is the level of the upper Light, the Light of Hochma. A person should bring himself to the level of the priest, to rise to the level of the Light of Hochma and then he will see whether there are any flaws in his egoistic desire, or rather vapors of decomposition (miasmas) that are on the level of leprosy.
All the miasmas of the ego that can be cured are emphasized and highlighted by the upper Light and it is actually thanks to their correction that a person ascends and is healed. So only on the level of the priest one can determine if his soul is healthy with the help of the upper Light.
Skin is the most external and the heaviest level of the ego. We know that skin diseases are usually impossible to cure since it is through the skin that the body extracts the toxins of the body. Thanks to its power of self-preservation and the ability to sustain an internal homeostasis, the body tries to get rid of the toxins in it and to extract all the filth through the skin.
A person’s body is made up of a mind, bones, tendons, flesh, and skin. The skin is an organ that exists separately and cannot be corrected since all the toxins and the waste materials from all the internal states are extracted through it.
We, however, attribute everything to nerves. If I have a rash on the skin I am told that it is because I am nervous. What is the connection between the two? It is the skin that suffers.
Question: What is the meaning of “scab or a bright spot shall have the skin of his flesh a rising?”
Answer: It is the revelation of the ego either in making it grow or the opposite in reducing it. When a person doesn’t make the greatest efforts in the right direction, or in other words when you either do too much or don’t do enough with your desires, it is the lack of a Masach (screen) for more or for less.
It is a very complex system, hair “Se-arot” (from Hebrew word meaning “raging”) symbolize a persons’ grudge and anger regarding his egoistic desires to reveal the Creator.
It says: “if the hair in the plague be turned white, and the appearance of the plague be deeper than the skin of his flesh, it is the plague of leprosy.” This means that the egoistic desires are so great that they lose all color: What exactly should they yearn for, what should they correct? They descend to a level in which they only want everything for themselves.
In our world the skin is the protective sheath of the body. “… and the appearance of the plague be deeper than the skin of his flesh,” symbolizes that on this level the skin cannot serve as an external protective shield.
From a Kabbalistic perspective the skin is the very last Aviut (thickness), the depth of the desire, but if we correct it, we will be able to correct all the other symptoms.
There are alternative medicine doctors who first examine the patient’s skin, then feel how it breathes and what it smells like, etc. This is a very serious diagnosis.
From KabTV’s “Secrets of the Eternal Book” 2/19/14