I learned much the same as her with using symbols, but I think I've taken to learn thinking processes from life, classes, my mom, theology, etc... Using animated mental video clips
can also substitute for some of the mental images. We both use images in our head, but I also use words. In her book, she mentions the word "dog" triggers her to think of a specific dog in her past. Me, I get a random image of a dog. Usually something like a flash card.