Baal HaSulam, Beit Shaar HaKavanot (The Gate of Intentions), Chapter “Concerning Passover Exodus”: The first generations, the generation of Enosh and the generation of the Tower of Babel, exiled Shechina upward to the “seventh heaven.”
Israel of the generation of the Egyptian bondage were the same Keri (wasted semen) sparks that Adam HaRishon kept dropping for 130 years until he begot Seth.
The Keri sparks are the Light of Hochma (Wisdom) which intend to receive egoistically, for their own sake. If the Light of Hochma doesn’t reach the right place, which is under the screen, and doesn’t dress in the Light of Hassadim (Mercy), it is regarded as “dropping semen onto the ground” (from Hebrew, “Aretz,” land or ground, and “Ratzon,” desire or will), to “waste” it.
Every person must pass through these degrees, the generations of Enosh and the Tower of Babel, through egoistic desire that doesn’t consider anyone and wishes to receive all pleasures directly, which is regarded as “loss of semen.”
A soul is similar to gold and when it is excavated from under the “ground,” it is mixed with litter, until it is purified so that all dirt falls away and it can be named “gold.”
After the breaking of the vessels that occurred in our roots, in the spiritual world, our souls sank within the desire to receive for self-gratification and became mixed into it completely. There are very few sparks of bestowal that ended up in this egoistic desire, which are very difficult to retrieve from it.
It is similar to gold mining, digging gold from under the ground, when thousands of tons of soil have to be sifted and undergo various processes before a few grams of gold are finally extracted from it. The soil itself doesn’t come from just any location, but rather from where gold had been found before. Nevertheless, truckloads of soil must be brought in and purified, washed in water, and sieved by filters so that a few scarce grams of gold may finally emerge.
The same pertains to our souls after the breaking. Inside enormous egoistic desire, there are mere few scattered sparks that, albeit still egoistic, are able to be corrected in order to bestow. It is they that we gradually must extract, and this is the job we must complete.
From the 3rd part of the Daily Kabbalah Lesson 4/18/2011, Beit Shaar HaKavanot