If you were dreaming of arch, it means you are going through a stage (or phase) of your life. If you see dream imagery of a complete arch, it means your journey will be completed. If you see dream imagery of a broken and damaged arch, it can mean you’ll have a tough journey walking through and completing the walk through this arch.
In this same vein, the construction material of the arch matters. If the arch was built of stone, granite or of sturdy material, it means you will have a steady journey. If the arch was made of wood or weak material, it can mean your journey through this arch is perilous.