Reply To: Tomorrow Segula for Parnasa, Saying Parashas Haman

it says קשה פרנסתו של אדם כקריעת ים סוף for Hashem, providing a livelihood is as hard as the splitting of the sea, a hidden miracle and it comes in an unexpected way. When we put the hishtadlus, effort into it, it does not necessarily come from that effort. The Chidushei Harim explains that no one expected the splitting of the sea.