The importance of faith

Finally, you should be made aware of the fact that without faith in what you are doing, magic couldn't exist. You must understand the divine aspect of the energies that we discuss here and show them respect when you make your request. 

Entities, angels and archangels invoked during rituals are the same as those who responded to magi and believers for centuries ago. If you doubt their power or their kindness, if you do not have faith in them and if you treat them with carelessness, they will not serve you as well as you'd wish them to.