Where do doodles come from, why are they satisfying if you get the pattern right. Simple black lines twisted and convoluted. If I had drawn just a straight line how far would it stretch? Can you see bears or frogs in this? Or Elizabethan ruffs perhaps? Would you draw anything like this or would it be angular or something different? Playing with lines is fun and engrossing. Why not try taking a line for a walk as it’s sometimes called?