Baal HaSulam, “The Peace”: Thus, in our world, there are no new souls the way bodies are renewed, but only a certain amount of souls that incarnate on the wheel of transformation of the form, because each time they clothe a new body and a new generation.
Therefore, with regard to the souls, all generations since the beginning of Creation to the end of correction are as one generation that has extended its life over several thousand years, until it developed and became corrected as it should be.
And the fact that in the meantime each has changed its body several thousand times is completely irrelevant, because the essence of the body’s self, called “the soul,” did not suffer at all by these changes.
Question: How does the population on earth keep growing if the number of the souls that reincarnate from one generation to the next is fixed?
Answer: The souls are divided according to the number of bodies. Basically there is one soul that is divided into many parts, but this division doesn’t really exist and we only perceive it that way.
In fact, reincarnation is a change of form of the desire to receive. There are many such reincarnations at every given moment.
There is only one soul, which seems broken. We see that it is dispersed in different bodies and divided into seven billion people and besides there are also animals, plants, and inanimate rocks. The whole world is part of the desire to receive that undergoes changes or reincarnations in their desire.
A Kabbalist writes about the reincarnations of the corrected desire that is equipped with an anti-egoistic Masach (screen).
Question: So what is the meaning of the corporeal world that we see, changing it in time?
Answer: The meaning of this world is to use it correctly to ascend to the spiritual level, that is, to add the spiritual essence to the corporeal picture that we see. By that we sanctify this world and it becomes spiritual.
We discover the connections between all the parts of creation: the inanimate, vegetative, and animate nature, and most importantly, the speaking that are increasingly more connected by ties of love and mutual support until we reach the picture of one whole reality.
From the 4th part of the Daily Kabbalah Lesson 6/21/15, Writings of Baal HaSulam