Essential to psychology is the recognition that the psyche is not only the object of psychological investigation, but at the same time, and recursively so, its subject. Having no point of perspective outside the psyche to view it from objectively, and no substrate or pre-suppositional base in anything more substantial, literal, or positively existing, a truly psychological psychology, it follows, must be internal to itself, a discipline of internal reflection.
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As its name implies, The International Society for Psychology as the Discipline of Interiority is dedicated to the furthering of psychology by means of this very same process of rigorous self-application and continuing self-redefinition. Embracing the inwardness of psychology in an absolute manner, its aim is to advance the discipline by subjecting psychology, again and again and at ever new levels, to its constituting recognition that everything that it asserts about the psyche–all of its insights, theoretical statements, knowledge claims, and topic choices–are at the same time expressions of the psyche, a part of its on-going phenomenology.