Water baptism is a picture of spiritual baptism as defined in Romans 6:3-5 and 1 Corinthians 12:13. It is the outward testimony of your inward faith. You were saved the moment you placed your faith in Jesus. Baptism is a visible testimony to that faith.
• You are "crucified" (standing upright in water),
• You are "buried" (immersed into the water),
• You are "resurrected into life" (raised out of the water).