let me give you an example, when I study my mathematics book, I have an imagination of myself after reading, I see myself the master in mathematics, and that when I solve questions, I answers and Ideas flicker to my mind, but the truth is that when solve, I get stuck in many things, most of them i solved few hours later, but some are still unsolved yet, Moreover, when reading an english story with a purpose of getting the writer's sense and way of writing to enhance my writing, I find myself confused when I start activating, I ask my self :"did I actually get what I need?" , I am still on it, though I only got a flicker 2 times in my life, but my memory has improved and I started to understand the meaning of words by a kind of intution, Specially after trying reading books by the palm of my hand..