The pure heart of a child allows them to see angels. When have been harden so much by life, that we have protected ourselves so much that we can no longer see the angel who is right besides us. the angel at rice ave.
Jesus said, "Except you be converted, and become as little children, you shall not enter into the kingdom of heaven. Whosoever therefore shall humble himself a this little child, the same is greatest in the kingdom of heaven" (Matthew