 If you lack peace, it could be because you lack faith. Jesus gave us a cure for a troubled heart. Don't let your hearts be troubled. Trust in God and trust also in me. As difficult as it may be, you need to accept that some things are beyond your understanding, contrary to your preferences and outside your control. But when you shift your focus from your helplessness to God's strength, from your questions to God's sovereignty and from your worries to God's goodness, peace fills your heart. Your heart can only be troubled if you let it. No, it's not just a cliche or dismissive quip. It's divine wisdom. Trust God.