Zen does not confuse spirituality with thinking about God while one is peeling potatoes. Zen spirituality is just to peel the potatoes.
Going in Deep
To have faith is to trust yourself to the water. When you swim you don't grab hold of the water, because if you do you will sink and drown. Instead you relax, and float.
Things are as they are. Looking out into it the universe at night, we make no comparisons between right and wrong stars, nor between well and badly arranged constellations.
You and I are all as much continuous with the physical universe as a wave is continuous with the ocean.
But the attitude of faith is to let go, and become open to truth, whatever it might turn out to be.