Likutei Moharan 23:2/ליקוטי מוהר"ן כ״ג:ב׳

12. And know! by rectifying the holy brit (Covenant) he is saved from the countenance of the Other Side. Through the blood of circumcision, the blood of menstruation—the desire for money—is rectified. As it is written (Zechariah 9:11), “Also with the blood of your covenant”—through circumcision—“I have freed your prisoners from the pit.” “The pit” is the spleen, melancholy, “with great sorrow you will eat.”

2For the Covenant corresponds to salt, which sweetens the sorrow of earning a living. As is brought in the Zohar (I, 241b): “Were it not for salt, the world could not bear the bitterness.” This is the meaning of (Numbers 18:19), “The covenant of salt is eternal”; and it is (Leviticus 2:13), “Do not leave out the salt of the covenant of your Lord.” Specifically “your Lord,” for through this you become bound to Godliness and separated from idolatry. As it is written (Job 19:26), “From my flesh I behold God.” By virtue of rectifying the brit, he causes “the light of the Living King’s countenance” to shine upon himself.

3And this is: With salt, money is lessened (Ketuvot 66b). This is because through salt his desire for money is lessened.