You’ve lost your keys, and as the saying goes “they’ll be in the last place you look!”
Well, yes, because you’ll stop looking after you’ve found your keys.
This has been the basis for a lot of beliefs formed throughout the world, throughout history. We find an explanation - an interpretation of an event/situation/circumstances - that seemed to fit well and worked for us, and so we stopped looking.
Play with this.
Where in your life did you form a belief and stop looking for other possible explanations?