I read a book in 2017 called Absolute Key to Occult Science by an occultist named Papus.
He came up with a pattern which he called a Septenary.
It was a six-pointed star—like the Star of David—where each point had a number, and a seventh number was at the center of the star.
He had a series of these stars, and he associated the Major Arcana Tarot cards to the numbers.
I was very interested in this concept because I started noticing relationships between the Tarot cards, and I thought since I associate the Major Arcana Tarot cards with our Life Purpose by reducing our birthdays, maybe I can create some sort of map to further understand human relationships.