in my 20's I went through a numerology phase and began taking the digital roots of everything, it became a habit and now I can't not do it. I developed a really

in my 20's I went through a numerology phase and began taking the digital roots of everything, it became a habit and now I can't not do it. I developed a really similar sort of visual mechanical sense for the digits 0-9 where the digits click together as if they were magnets and the closer they are to 5 the more they repel their own parts (eg two 5's might easily disintegrate to snap into a nearby pair of 3's). it's really interesting to hear about other versions of this sort of thing.