It goes with out saying that one that trusts in H'shem when times are hard, very hard, and does not lose faith that H'shem is in charge and is continuously taking care of him, "he will be rewarded" The act of trust is compared to Klal Yisroel in the Midbar when they waited every day for the Man. This is why saying Parshat Haman everyday is a promised Segulah for Parnasa. Knowing that H'shem will provide for you what you need everyday with out worry, not if it will come just knowing that it will, is a tremendous act of Emunah and Bitachon. H'shem NEVER forgets any little gesture of trust that we do which is why it says in Yermiyahu 2:2 "How you followed Me in the wilderness in a land not sown"
pg 417
pg 417

