Do you believe in ghost? Have you ever seen ghost? You’re so lucky if you can’t see but it, but believe that ghost, or whatever it is called with,is really exist. That is called “faith”. You believe in something even though you never see or feel it with your five senses. That is called ghaib (Arabic). Ghaib is something invisible. Ghaib is also mean absence. The most frequently question from “the West” is ‘how do we can prove that something ghaib is really exist, if it can’t be proved/seen?