As soon, then, as in man the _person_, the moral and free agent, takes upon himself to determine the play of phenomena, and by his intervention takes from nature the power to protect the beauty of _her_ work, he then, as it were, substitutes himself for nature, and assumes in a certain measure, with the rights of nature, a part of the obligations incumbent on her. When the mind, taking possession of the sensuous matter subservient to it, implicates it in his destiny and makes it depend on its own modifications, it transforms itself to a certain point into a sensuous phenomenon, and, as such, is obliged to recognize the law which regulates in general all the phenomena. In its own interest it engages to permit that nature in its service, placed under its dependence, shall still preserve its character of nature, and never act in a manner contrary to its anterior obligations. I call the beautiful an obligation of phenomena, because the want which corresponds to it in the subject has its reason in the understanding itself, and thus it is consequently universal and necessary. I call it an anterior obligation because the senses, in the matter of beauty, have given their judgment before the understanding commences to perform its office. Thus it is now free arbitration which rules the beautiful. If nature has furnished the architectonic beauty, the soul in its turn determines the _beauty of the play_, and now also we know what we must understand by charm and grace. Grace is the beauty of the form under the influence of free will; it is the beauty of this kind of phenomena that the person himself determines. The architectonic beauty does honor to the author of nature; grace does honor to him who possesses it. That is a _gift_, this is a _personal merit_. Grace can be found only in _movement_, for a modification which takes place in the soul can only be manifested in the sensuous world as movement. But this does not prevent features fixed and in repose also from possessing grace. There immobility is, in its origin, movement which, from being frequently repeated, at length becomes habitual, leaving durable traces.