Man's experience is able to be divided into external and internal. Basing on natural scientific knowledge, the external experience develops spheres of ontology, metaphisics and philosophy of nature. While, to the internal experience, belongs spheres of consciousness-psychology, phenomenology and existential philosophy. The philosophy or thought of Rao-tzu, the Chinese ancient philosopher, was studied as a rule from standpoint of the external spheres. Excellent quality of the Rao-tzu philosophy, however, can better be understood from standpoint of the internal, Internal human experience is classified according to present-day psychologists into three parts ; knowledge, feeling and will. Rao-tzu used such words as Positive, Negative and Neutral. These words were interpreted, here-to-fore, as metaphysical categories. These words however can be illustrated consciousness-psychologically, for they correspond to such concepts as feeling, will and knowledge. Beneath stratum of consciousness lies unconsciousness, and under that again lies pre-unconsciousness. The order of world was expressed by Rao-tzu as Heaven, Earth and Man. But, these words can also be refered to the internal spheres, as they closely correspond them.