I have had many experiences throughout my life where I felt that there was no other explanation than divine protection. Like being surrounded by an invisible protective wall that kept me safe when I was in the middle of collisions on the freeway, or being rescued by a good samaritan that suddenly appeared. There are many things that we know exist even though we can't see them, like sound waves & atoms in the air. So I think other dimensions might occupy the same space as the physical world that we live in. Angels might be living in a different dimension all around us. ?