Originally Posted by
Aiss
The thing about Enneagram fixation and fear is that you have a basic fear, or rather, perceive the world as threatening in a certain way - an image that forms in childhood. Then there are defense mechanisms, ways to deal with this world - kind of "if it looks like a nail, use a hammer", to rephrase the common saying for this purpose - to avoid suffering, which is the real motivation. From this what we call "motivations" stem, which in turn result in behavioral patterns.
For 5s, the original perception is that of invasive, intrusive world. This leads to visible focus on protecting their privacy.
For 6s, this image happens to be of the world which cannot be trusted, is going to get you if only you give it an opportunity. The key part is not "the world isn't nice", but rather "the world is deceptive". Their way of responding to it is to be on their guard, always. So they try to be self-reliant, careful, mistrustful, but can't help the pessimistic outlook that comes with this watchfulness. And while all types have an inherent fear, 6s clearly display anxiety in behavioural patterns associated with this type - worrying too much, preparing for the worst case scenario, preferring predictability, overestimating danger, not trusting easily. IMO the latter is the indirect reason for often added "loyalty".
For 7s, the world is primarily seen as limiting, forbidding. And so they can't let an opportunity pass without feeling oppressed.
5s and 7s also are based on fear, of being invaded or limited, respectively, but 6s fear is most related to everyday "fear" out of those.
I didn't expand on other examples, but I hope it give the general idea.