We can use the evil one as a free worker... When, for example, he brings us evil or blasphemous thoughts, we begin the prayer and so the evil one: "It's good that you pushed me because I forgot my Christ." If we do this and want to keep the evil one away, he will not stay, because he is not so stupid as to work for nothing and to do good for our soul. - St. Paisios the Athonite