Christian faith is a gift from God.  We do not earn it.  However, we can refuse this gift.  We must accept this gift with our mind, our heart, and our will.  Our whole person believes in Jesus Christ.  My mind believes that it is true.  My heart says I trust.  I will love and have a concern for others.  The initial Christian faith is a gentle longing, a search for meaning.  For some it comes in a blinding flash, like the apostle Paul.  Dorothy Day (1897-1980) found it working with the poor, while others see it in the presence of a priest or minister who witnesses to goodness, or at the time of a tragedy or death.  Still others grow up within a cultural community of Christians that grows with them throughout their life.  My faith in Jesus Christ is a continuous growing mysterious reality.