What are subtypes and how do they influence your core type?
First of all, let's take a step back and consider the push back that is often hurled at Enneagram fans and teachers which is: "There can't possibly be only nine types that all humanity in the entire world fits in to. We are too diverse, and have too many varieties of humans for everyone to be categorized as one of nine types."
One way of addressing this concern, has been wide-spread but it's worth mentioning again, and that is to think of the color wheel. There are only a certain defined number of primary and secondary colors - the ROY G. BIV if you will - however, WITHIN each color there is a wide spectrum of shade and variations. Some of them look nothing alike, but still contain the same root color.
But also, maybe the way my strange brain works will be helpful here, I like to think of this as a meal. Your Enneagram type is like the protein - there are only a...