We intend to disclose the original intention of Husserl's phenomenology as the radicalizing of the act of "seeing." Why Husserl failed to further radicalize this philosophical knowing is precisely because this radicalization requires to elucidate the nature of and go beyond reflection as philosophical cognition. This reflection is none but the self introspection presupposing the traditional subject-object dichotomy. To overcome limits of the subjectivistic notion of reflection we must achieve phenomenological epoché on the theoretical domain and even on the practical sphere. A parallel is discovered between this radicalized phenomenological approach and that of Zen philosophy for our future philosophical method.