Answer [by 'Abdu'l-Baha]: “They come from other minds; they
are reflected. One should not become a mirror for them - to reflect them;
neither should one try to control them, for this is impossible; it only
aggravates the difficulty, causing more to appear.
One should constantly turn the mirror of his heart squarely
toward God so that the Light of the Sun of Truth may be reflected there.
This is the only cure for attacks of evil thoughts. The face
of the mirror should be turned toward God, and the back of the mirror toward
the evil thoughts.”
-' Abdu'l-Baha (From a table talk by ‘Abdu’l-Baha, ‘Daily Lessons Received
at Akka January 1908”, by Helen Goodall and Ella Goodall Cooper)