Three questions I received on the breaking of the common soul from my student in Brazil:
Question: In the book Kabbalah Revealed , it says that only 600,000 souls were created, and they were subdivided because of the issue of selfishness. Is the result of the subdivision also regarded as a soul, i.e., a single spiritual entity?
My Answer: The souls do not subdivide or converge, but rather, each soul undergoes its own individual correction.
Question: What happens to the souls that have resolved the issue of selfishness: do they become extinct and cease to exist entirely?
My Answer: The souls simply descend to the level of our world, and then ascend back by virtue of our efforts. Their essence is eternal.
Question: Can a soul be extinguished?
My Answer: Nothing in the spiritual worlds can be destroyed – everything there is eternal. Things merely change their form.