Tools
Tools — things you use, to achieve your own ends.
If your tool steers you in how you can and can't use it — there is a possibility, that it is not you who are using the tool — but rather you are the tool, being used.
If your tool steers you in how you can and can't use it — there is a possibility, that it is not you who are using the tool — but rather you are the tool, being used.