Answer: We don’t sense Abraham, Isaac, or Jacob because we lost desires that we previously had. After the shattering occurred, all spiritual desires disappeared leaving only a small primitive egoism that grows in us.
In each generation, the same souls are reincarnated, but each time new informational genes (Reshimot) unfold. That’s why the population of earth continues growing. This is done to facilitate the process of correction. One body is unable to bear a large number of informational genes that have to be corrected; therefore, they are split among multiple bodies.
Baal HaSulam gives the example of the parable about a king who wanted to relocate his treasury. He couldn’t trust his subjects because they were all thieves and egoists.
So, he distributed his treasure among many people, giving them each a coin that was not worth stealing. People brought the coins to a new place and returned them to the treasury.
In this way we correct ourselves: each one is given a small part of the soul that requires a small correction that we must do.
Question: Does it mean that the world population will continue growing?
Answer: It depends on how successfully we reveal the wisdom of Kabbalah. If we don’t correct ourselves by our own freewill, we will face wars that will significantly reduce the population. Corrections that happen as a result of battles and wars are extremely hard and are accompanied by severe hardships in this world.
However, if we advance correctly, we will rapidly unite all of humanity as “one man with one heart.” This will complete the process of correction and a new era in the new world will begin.
From the 4th part of the Daily Kabbalah Lesson 6/21/15, Writings of Baal HaSulam