Physically, you are alive, even if you don't have faith. But, everything else about you would be dead. Without faith a person really has no reason to live.
There is no purpose in their lives. Everyone has faith in something. What you believe in makes up who you are. It also influences your morals, actions, and thoughts. The abandonment of faith is the equivalent of death because without anyting to believe in, a person has nothing to live for. They would feel dead inside because they wouldn't have hope in any thing.
