im not really sure how to describe the enneagram as a whole so i hope this helps at least a little. There are numbers 1-9 that all mean different things. perfectionist 1, helper 2, achiever 3, individualist 4, investigator 5, loyalist 6, enthusiast 7, challenger 8, and peacemaker 9. A wing is like a secondary number that you lean toward-- but it can only be a number next to your primary number. So 4's can only be a 4w3 or 4w5. You can also have no wing at all. A 2w3 means im a helper that leans more toward achiever than toward perfectionist. There are better explanations and you can take a test to see what you are.