The Torah, “Leviticus” (Metzora), 15:19: If a woman has a discharge, her flesh discharging blood, she shall remain in her state of menstrual separation for seven days, and whoever touches her shall become unclean until evening.
It is about the revelations of very serious corrections of Malchut and the cycle of the moon to which everything is connected in our world. In the past all the women in Israel had their monthly period at the same exact time of the month, for one week in which the discharge of the blood occurred at the same time for all the women together: on the same day at the beginning of the month. This indicates that by being corrected under the clear influence of the moon they were connected into one woman.
The moon symbolizes our resemblance to the sun. An eclipse of the moon by the earth or the revelation of its illumination symbolizes the level of correction. On the whole we bless the new moon since we begin to work on the revelation of the moon, which means on our resemblance to the Creator.
Eventually, after the end of correction, the two great lights will illuminate to the same extent: the big light, the sun, which symbolizes the Upper Light and the small light, the moon, which symbolizes the created being. This means that the moon symbolizes the level of our resemblance to the sun, to the Creator.
Therefore, previously, in the correct state, which means in the state of resembling the sun, the monthly period of all the women began at the same time. But when the ego entered these pure desires and the shattering occurred, the women’s period was disrupted. In any case, the moment the blood appears a woman should wait until the discharge of the blood ends and then consider herself impure for another seven days.
From a spiritual perspective, a discharge is the desires that cannot be corrected in a certain month and so they have to come out because they cannot be corrected. Once they have come out and the body has been cleansed and purified of them it is possible to work with them and to become pregnant. In our world to purify means to immerse in the Mikva and in the spiritual world it symbolizes the purification under the influence of the Upper Light.
When the discharge of the blood ends, the seed that the woman receives is nourished by the blood of the pure Sefirot that are left in her. Thus the white seed of the father and the red (blood) of the mother develop and an embryo is created. The Creator gives the soul, the Light, which connects them, and the next level is born.
From KabTV’s “Secrets of the Eternal Book” 3/5/14