The grave is the force of the quality of judgment that a person died from. “A person died” means a transformation of our egoistic inclination. What does it mean that we came out of the womb? We turned upside down, left all the previous egoistic calculations and started new ones, altruistic ones, and entered a new world.
In the spiritual world, as in our world, the embryo passes through a narrow passage. “Narrow” in Hebrew is “Tsar,” “Tsarot” (suffering). This is a result of the absence of the light of Hassadim when only the light of Hochma, a force without mercy, acts on a person to give birth to him.
Otherwise, he will not be able to pass through this narrow passage and be born in the upper world, because he himself does not have the strength to create a quality of mercy from himself.
Question: So he must necessarily experience these Tsarot, this hardship of birth?
Answer: There is no caesarean section in the spiritual world. You can be born there only by going through a state resulting from the light of Hochma acting upon you. This light is very sharp, very heavy, and complex.
This state is called fleeing Egypt. A person must go through it because the light of mercy, the so-called quality of Hasadim, does not come from above but develops from the person himself. But one is still unable to develop this quality, therefore only the light of Hochma affects him, which causes his birth. In spirituality this is called crossing the Final Sea (Yam Suf). This passage is very dramatic.
From KabTV’s “The Power of The Book of Zohar” #19