Christian: Just because you cannot see God doesn't mean he isn't real!
Atheist: And Just because you say that doesn't make him real!
Christian: You believe the air is there, you breathe it in, yet you cannot grab it and say this is air and prove to me it exists.
Atheist: You're just making things up! I can feel the air!
Christian: I don't believe you feel the air, so what can you possibly do to prove it being real?
Atheist: You can feel it too!
Christian: And what if I said that wasn't air? What if I said you're wrong.
Atheist: then you're a fool!
Christian: You, and everyone feels God's presence, when you feel someone there when you have done wrong, you look, and see no one there, but you can feel it, am I right?
Atheist: common schizophrenia!
Christian: Not true. You saying that is like me saying you feeling the air is schizophrenia, you say you feel it, but I see nothing!
Atheist: what is your point?
Christian: My point is... You may not see God, like you cannot see the air, but you can feel his presence like you can feel the air. God is there, like the air is there. You just have to believe like you believe the air is there.