Positive illusions are a type of thinking or attitude where you believe that things are better than they actually are. It usually involves having overly positive opinions about yourself and your abilities, even if the facts don't support them. It's like seeing the world through rose-colored glasses- you think that things will turn out better than they probably will. Positive illusions can be helpful because they give you confidence and optimism, but if you become too trusting of them you might not act in a way that will actually improve your situation.