Kant's Moral Sun

From Kant's Principle of Pure Practical Reason, 'Act only on that maxim that you can at the same time will to be a universal law', the components 'act', 'maxim', 'can at the same time will', and 'universal law' have been thoroughly analyzed over the centuries. But perhaps the decisive element of the formulation is 'you'. With this 'you', the Principle functions as Plato's 'Sun' does--it illuminates an 'I' which can function as a subject that can act and will in the prescribed manner. It, thus, transforms what had previously been, as much as any other entity in the cave of sense information, only a shadow on a wall, a point which seems to generally have remained only implicit in the millenia of exegeses of those passages from the Republic. Furthermore, it surpasses Plato's Sun by offering an articulation of what is presumably no more than an instantaneous intuiton.