Maybe the positive thinking does not fool yourself to think positively, but it makes our minds. Some have it more strength to ourselves not to fool yourself into wan.
Perhaps positive thinking does not fool yourself. But positive thinking mind, it makes us better. Some have it as a strong complement to our own. Not fool yourself from day to day.
Maybe positive thinking is not self-deception. But the positive thinking it puts us better. Some of it is to add strength to ourselves. Not self-deception around.