In another departure from my usual, this is an unretouched/edited shot, except for cropping and rotating.  I noticed raindrops on the screen of my office window with the light shining through them, creating little ripples on the individual droplets, very pretty, and they sat on this grid pattern like Go stones (for those of you who have played the game). Go takes a lot of patience and like so many pursuits of interest, involves good pattern recognition skills.  As does math, software engineering, music, and data analysis of all kinds.

Even photography. If you study the works of the best photographers, you will find repeating patterns within a photograph.  Having patterns that repeat will draw the eye in certain directions, create emphasis, and unify something like, say, a street scene.  Look for patterns when you are framing a shot.  You will find that it makes for a stronger image.