The Yesod Ha’avodah of Slonim zy”a writes that the main thing is for a person to strengthen his emunah and unquestioningly trust in Hashem, without entertaining any doubts. He adds: “Holy words are a great segulah. When one says out loud ‘Ani Maamin B’emunah Sheleimah’ he brings a light of emunah onto himself.”
He goes on to quote the Lechovitcher Rebbe zy”a as saying, “A Jew must believe that he is a believer.”
Rewarded Even Without Asking
Sefer M’Zekeinim Esbonen writes that he heard the following from Rav Mordechai Chaim of Slonim zy”a, in the name of Rav Moshe Leib of Sassov zy”a:
We recite in davening: “V’sein sachar tov l’chol habotchim b’shimcha b’emes.” (And give good reward to all who truthfully trust in Your name.) The reason we ask for this on their behalf is because those trust fully in Hashem do not ask for anything, as they simply rely on Him. However, there is a rule that one does not receive something if he doesn’t ask for it. Therefore, we make this request for them.
