Be living in a fool's paradise phrase
To be in a state of affairs where one believes or feels like things are good, but actually, they are not.
John is confident that he'll pass the exam without studying, but I think he's living in a fool's paradise.
He choked her last week, but she still thinks he loves her. She is living in a fool's paradise.
John's never got any high marks in the exam, but he still thinks he is the brightest student in the class. He is living in a fool's paradise.
The expression dates from the fifteenth century, when it appeared in print in William Paston’s letters.
To become important or obvious
This matter needs to come to the fore this afternoon meeting.