The Bible teaches us that the Lord God is the Potter in our lives, and we are the clay in His hands. He is in sovereign control of our lives, and He controls all the events of our lives. All the events of our lives are used to make us more like Jesus. God especially uses problems, difficulties, and trials in our lives to mold us into the kind of people who truly reflect the Lord Jesus. The Lord wants to bring us ever closer to the center of His will. Difficulties teach us to not rely on our own self-effort and devices. Difficult times in our lives teach us to rely and trust only on the Lord.
Here is a link to song about God being the Potter and we being the clay in His hands: https://www.youtube.com/watch?v=bgXL3y9RIbI