I'm an atheist, but I consider myself a spiritual person. I think we all are.
My "faith" is love, and awe, and splendor, and beauty. Mercy, grace, compassion.
I cannot separate my life from my "faith". My "faith" is how I make sense of reality.
Asking about life without "faith" is like asking what the world would look like if we did not have eyes (or, to be more accurate, the ability to make sense of the visual information that is transmitted through our eyes.)
Faith isn't something we put on like a hat every weekend- it's embedded in every moment, in every breath, in every decision.