Kabbalah for Avodah Zarah 40:25

After we spoke in general about the damage of the Brit and the punishment of emitting semen in vain, we need to explain another aspect also regarding the damage of the Brit, and that is the sin of Keri (semen) that is found after one emits semen in vain, which damages the brit, and the meaning of Keri is “taking out” from the place of the holy Brit to give to the Chitzonim. In the Zohar in Pekudei (verse 864) there is an article called “the second chamber of impurity”, which is the chamber where the ones who defile their Brit are repaid. In the end of this article Rabbi Shimon says that there are two spirits there that turn into males and females, and these spirits defile men when they dream at night and they cause them to emit semen in vain. The punishment for this is a bit similar to one who emits semen in vain, since it says “guard yourself from anything evil” (Deuteronomy 23:10), implying that one should not have negative thoughts during the day so that he won’t come to impurity at night. We have already quoted the words of sages above that one who cause himself to be aroused is not accepted in the courtyard of the Creator.