-If a person knows the proper methods he can contact magidim (Angelic beings).
-These magidim can reveal mysteries to this person.
-If a person is not pure the magidim he contacts will also be impure. The information they give him will contain falsehood mixed with truth, all according to his level.
-Many times the information will contain some truth and the person convinces himself that he has received an authentic Magid, whose words are all true.
-The Ari gave Rabbi Chaim Vital a sign to check the validity of a magid.
-All his words must be true.
-Any future predictions must happen exactly to the letter, of what he said.
-All his advice he gives must be totally focused for service of heaven.
-He must also be able to reveal the hidden mysteries of Kabbalah.
-By seeing how he performs in these categories, one will know the level of the Magid.