When I color inside the lines I must focus. I pay attention to the line and make every effort to stay within its boundaries. I focus on the color, angle, texture, style, etc. I swirl some strokes, I soften others, the coloring has my undivided attention. If I get distracted, and/or choose not to focus. I cannot stay within the lines. At first it may not be noticeable, but eventually it ends up one big coloring mess. It becomes chaotic, and sloppy. It becomes hard to get