Faith

Can religious decisions be made without faith?

I believe that religious decisions which rely on the absolute existence of God to support them cannot be made without faith; I feel that faith means holding a belief without certainty and/or evidence to rationally support that belief. Personally, I believe in God, yet I am aware that God may not be accurately represented by any church here on Earth. I feel that faith is essential to any decision, whether it be religious or not, if we are to maintain optimism and satisfaction in our choices.