We love proof. We want empirical evidence . . . things we can see, touch, feel . . . things we can measure or to which mathematical theorems apply. The standard operating principle for many seems to be: prove it to me and I’ll buy into it. Faith is not like that. Faith is as intangible as love or integrity or gratitude. While faith cannot be put under a microscope or boiled in a test tube, it is no less real just because it cannot be observed with the five senses. The validity of believing in and striving to follow Jesus is not a scientific principle. Yet we are willing to stake our lives on it.