I think a sense of humour can help you deal with life's difficulties. As they say, 'laugh and the world laughs with you;cry, and you cry alone.'
Here's a joke I heard recently:
A man visits a friend's house and is invited in to the living room.In the living room, there's a table, and on the table there is a game of chess. Next to the game of chess, there's a dog.
'That's amazing,' he says. 'Your dog plays chess.'
'Yes,' replies the man. 'It is amazing, but it isn't so amazing: we've played six games and he has only beaten me twice.'
This isn't the funniest joke in the world,but having a joke in mind and a sense of humour can help you stop taking life too seriously.