This document provides instructions and information about practicing visualization and memory exercises. It discusses how accurately remembering the color black can measure one's level of mental relaxation. It describes the physical benefits of improving attention, eye movement speed, and visual centralization. Mentally, it can increase endorphins and train the mind to correctly assemble mental images from visual stimuli. Tips are provided for practicing visualization successfully, including starting simply, verifying errors, and concluding with relaxation. FAQs address issues like imperfect mental images and frequent distraction, recommending repetition and meditation.