Answer: A person dissolves in others. He remains in the physical body, but leaves the inner egoistic essence, and begins to grow in the spiritual essence.
Question: Does he lose fear for himself?
Answer: Fear appears at the descent and disappears as one ascends because a person again adheres to the Creator. This happens time after time. The state of disconnection from the Creator is called a descent, and the state of adhesion with the Creator is called an ascent.
From the Kabbalah Lesson in Russian 12/31/17