Others have elaborated further, but I'll give an example you can probably agree with:

If you're having trouble making a decision, you can flip a coin. This is actually really useful if you don't actually let the coin make the decision. If you're disappointed with the result, you then found out you liked the other result better, and you should do that instead. There's no magic. It's just a way to help ourselves gain insight into what we believed but we're having trouble realizing.