Basically it goes like this.
People spend hours talking in a chat room.
This is evidence by what happens on the screen. Likewise, when we talk to God we do not see Him but yet we know He is there. Moreover, we can see His effects all around us. I lament all the days of my life that I could have been talking to God, but I didn't believe that he was there. Now, when I have found the greatest friend I have ever known, who will walk with me all the days of my life I can barely contain my joy when I have a moment to talk to him.