If this is repeated often enough, you will start to believe that it is actually true. Subsequently, this thought will ensure that will never be good at languages throughout your further education, and so on, because after all it’s the truth, right, since you have been told so all along...Another example. A name may have eluded you once, or a few times, and as a consequence you say: “Oh well, I’m just terrible at remembering names.” This thought will then become reality as you keep repeating it to yourself. Such emotions, fears, and convictions will start to stick to our subconscious minds as it were.