Nature's Special Memory Endowment
We have a secondary or additional faculty which we call the mind's eye. You can close your eyes and see many familiar scenes or you can combine parts of these into new pictures that have never existed in fact. This process of visualization produces the strongest impression upon the brain that you are able to make.
The greatest step in the improvement of the memory is reached when the child realizes the value of this visual impression and is conscious of just how to use it.