Sitting by the ocean for a length of time, suddenly a wave will surge into the shore with a force that stands out from the predictable rhythm that both preceded and follows it.
The manifestation of an archetypal reality within a process will surge in just this manner, carrying an intensity that sometimes get pathologized as manic. Notable in this regard are the differences in posture between the person identified with this energy and thrown into a manic episode, and the individual who recognizes the archetypal energy for what it is and gets to work answering its call for manifestation.
This is one reason creative process becomes essential for soul work. When we correctly recognize the archetypal force we essentially ride the dragon instead if having the dragon unknowingly ride us.