To believe in God or in a guiding force because someone tells you to is the height of stupidity. We are given senses to receive our information within. With our own eyes we see, and with our own skin we feel. With our intelligence, it is intended that we understand. But each person must puzzle it out for himself or herself.
We think having faith means being convinced God exists in the same way we are convinced a chair exists. People who cannot be completely convinced of God's existence think faith is impossible for them. Not so. People who doubt can have great faith because faith is something you do, not something you think. In fact, the greater your doubt the more heroic your faith.
God, I don't have great faith, but I can be faithful. My belief in you may be seasonal, but my faithfulness will not. I will follow in the way of Christ. I will act as though my life and the lives of others matter. I will love. I have no greater gift to offer than my life. Take it.