by the way, i understand the numbers differently than what miriam adahan wrote. my understanding from the book on enneagram that i own is that you’re basically one number with a wing of one of the numbers next to you. so a 4 can have a 3 or a 5 wing; a 9 – an 8 or 1 wing.
also, if want to work on yourself different numbers have to go in different directions. i can’t remember it all off hand, but 4 has to go to 1, 7 to 5, 2 to 4,…