When Swedish industrialist and International Christian Chamber of Commerce (ICCC) founder Gunnar Olson started his first company, in his words, he was a yo-yo Christian. When things were great he was ecstatic, when things were down he was depressed. Also he was super-spiritual, so when sales were down he would fast and pray.
It was the smart thing to do.
On the last day of a 14 day fast he received a call from a woman whose wisdom and insight he highly respected.