Well, in a way, it’s kind of like a connect the dots. I draw a bunch of lines that transect the main vertical lines. These horizontal lines can’t connect from lines one to two to three. Then, I trace the lines downward. Every time they connect with a horizontal line, they must take that new line.
You can see here. Each line has only one possible answer.
As for the text, they have shrine names on them and messages to purify the space they are attached to.
That’s awesome! Thanks for the explanation :)