 If we help ourselves to the ‘because’ of rationalization, we can further exploit the unity of its ‘naïve’ and ‘sophisticated’ forms to give a simple theory of intention-with-which. An intention with which one is doing A is an intentional-action-in-progress that explains one’s doing it. We thus complete the task of unification that was set by the threefold division of intention for the future, intention-with-which, and intentional action, all of which are modes of, or modes of explanation by, being embarked on intentional action.