A boy was playing in front of his house and a man driving his car asked him for directions,

The man---Excuse me boy,can you tell me, where is the post office?

The boy----Keep on driving on this street,then about 2 block at the stop sign, turn right and about 3 the blocks you'll be there.

The man----Thank you boy.By the way I'm a preacher,go to my "church" and I will tell you how to get to heaven.

The boy---- No thank you,you don't even know how to"get"to post office how can you show me how to "get to heaven"