When I was first converted I came under tremendous attack by satan (he doesn't deserve an uppercase s). In my head I was always saying, "Begone satan!" I was begoning (snicker!) satan so much that I forgot to keep my heart on the Lord. Now, most of the time I just say "Jesus" as reverently as possible, for at the name of Jesus every knee must bend and I figure if they're busy kneeling and getting up they won't have time to bother me.
My Lord, my heart.