Frame of Reference and Center of Action

In a Frame of Reference, the reference is centripetal: from some external motion or object back to a focal point.  This orientation also obtains in a Practical Frame of Reference such as Heidegger's Dasein, for which some object is Ready-to-Hand.  But, as Bergson, perhaps alone, argues, the usability, and, hence, the perceivability of an object is possible only if the focal point has the capacity to move towards it and act upon it,   In other words, a Frame of Reference is fundamentally a Center of Action, i. e. the focus-object relation is fundamentally centrifugal.  Thus, though the Physicist Frame of Reference is presupposed to itself be in motion, also presupposed is that that Motion is not Action directed towards an external object in motion, but it nevertheless presupposes the possibilty of that Action.  Now, as has been previously noted, the introduction of Frame of Reference into the system of Modern Physics is, as is, ungrounded, since Reference is a relation that is not derivable from any of its fundamental laws.  However, if it is derived from Action, i. e. Force, then it is not an ad hoc intrusion.