Question: Why does the Creator first need to break the heart and then heal it?
Answer: Otherwise you will not feel that you have to gather your hearts with everyone else and then present them to the Creator.
Question: What does it mean to present hearts to the Creator?
Answer: To unite them among themselves and present them to Him so that He can fill them with Himself.
From the Daily Kabbalah Lesson 9/17/23, “Rosh HaShana“