You don't have to have an all-encompassing faith. Start small. Even if faith begins as a tiny seed, that is enough to begin with. In time, and with experience, that single seed of faith is sure to grow.
Every moment each one of us has the opportunity to choose to live with our eyes wide open, shining the light of truth along our path. Realizing who and what we really are, our entire world becomes illumined and we expand into the immensity of life.