Reason?

Is there a reason a carrot dangled in my sight and then was maliciously snatched away? Is there a reason I'm praising 'in spite of my circumstances'? Is there a reason I have to keep reminding myself that even King David worshipped when he didn't feel like, that the Israelites sang praises when they were surrounded by enemies on every side, that the praise of Jericho brought the walls down? Is there a reason? I'd like to know please. Thank you.