Otherwise, we have to use our intuitive vision. It can also take place in a dream. Sometimes when people dream, their intuitive eye is unconsciously open and they can see angels. On another level, sometimes, when God wants to manifest in and through someone, he will give that person an angelic touch. Angels do not work on the gross physical plane, If they try to come to the physical plane, most of the time they will be suffocated.
Angels never stay here for a long time.
They deal mostly with human beings. Sometimes angels fight directly with the undivine forces and sometimes they help human beings to fight the undivine forces. When they have more love for certain human beings, angels will fight against the undivine forces directly instead of giving those individuals the necessary inner strength. It depends on how much love an angel has for that particular person. Joan of Ark was greatly influenced by angels.