A Short Course in Scrying - Benjamin Rowe
To begin, the reader should understand that scrying is as much a learned skill as is reading or ice-skating. Persistent practice is necessary to teach the nervous system how to do it, even where the person has some innate talent. And as with other learned skills, there is a learning curve. At first, there will be a long period when you don’t seem to be making any significant progress. Then things will suddenly fall together and your practice will improve markedly in a short period, before leveling off again at something close to your highest level of skill.