Question: What is a soul?
Answer: A soul is a spiritual organ by which we feel what is external to us. If a person has created it, he feels the upper dimension outside himself. No one has a soul except for those who worked especially in order to find it, to acquire it, to create it, inside them.
A soul is a desire to bestow, the ability to feel the world that is external to you, a special sensor. This sense is acquired and it enables us to feel others even if they don’t have this sensing organ.
From the Kabbalah Lesson in Russian 2/21/16