I was in the Breslov place nearby today and that is why I was listening as they were learning the LeM  vol II perek 7. The interesting thing is that Rav Nahman holds that by saying the words that one is learning the learning enters the mind.

But this saying of the words does not have to be aloud. It can also be in a whisper. But the words need to be said. If I had known this in high school I might have gone into physics or math. After all this method of saying the words and going on would have helped me enormously. But I was not aware of this method at that time.