The text plays on the phrase 'Great Perhaps', which can be interpreted both as a humorous reference to the uncertainty an Agnostic might feel about the afterlife and as a play on the concept of 'great beyond' or 'heaven'. The pun hinges on the word 'Perhaps' which is not typically associated with the afterlife, creating a play on words that reflects the agnostic's uncertainty.
When an Agnostic dies , does he go to the Great Perhaps ?