As the primary fact of human experience is change, the relationship between the principles of Unity and Multiplicity is dynamic and ceaselessly changing. Rudhyar calls it the Movement of Wholeness. Like Yin and Yang within the symbol Tai-Chi, the principle of Unity waxes as the principle of Multiplicity wanes and vice versa. Neither can ever totally overpower the other and absolutely control the Movement. Each principle can only attain a maximum of relative predominance; as soon as either principle achieves this maximum strength, the trend of the Movement reverses itself and the other principle surges back and begins to rise.
      Hence, for Rudhyar, there can be no absolute subjectivity, no absolute Subject, "the One." Neither can there be absolute multiplicity: if no principle of Unity were in operation, there could be no unity of being, only an undifferentiated, infinite extension of nameless substance; no experiencing subjects because no wholes with defining boundaries, no experiences because no experiencers.
      When the principle of Multiplicity is stronger than the principle of Unity, being (that is, activity and consciousness) is more objective than subjective; when the principle of unity predominates, being is predominantly subjective.