A complex is a cluster of energy in the unconscious, charged by historic events, reinforced through repitition, embodying a fragment of our personality, and generating a programmed response and an implicit set of expectations.
Archetypes, in spite of their conservative nature, are not static but in a continuous dramatic flux. Thus the self as a monad or continuous unit would be dead. But it lives inasmuch as it splits and unites again. There is no energy without opposites!
Carl Jung (1875 - 1961)
Source: jung's letter to father victor white - http://www.jungcircle.com/muse/white.html
Only if we know that the thing which truly matters is the infinite can we avoid fixing our interests upon futilities, and upon all kinds of goals which are not of real importance...If we understand and feel that here in this life we already have a link with the infinite, desires and attitudes change.
In the final analysis, we count for something only because of the essential we embody, and if we do not embody that, life is wasted.
In our relationships to other men, too, the crucial question is whether an element of boundlessness is expressed in the relationship.