Lecture 6 in my Psychological Significance of the Biblical Stories lecture series. The story of Noah and the Ark is next in the Genesis sequence. This is a more elaborated tale than the initial creation account, or the story of Adam and Eve or Cain and Abel. However, it cannot be understood in its true depth without some investigation into what the motif of the flood means, psychologically, and an analysis of how that motif is informed by the order/chaos dichotomy, as well as by the idea of an involuntary voyage to the underworld or confrontation with the dragon. In consequence, this lecture concentrates almost exclusively on psychology: How is an encounter with the unknown to be understood, conceptually? How and why is that represented with themes such as the underworld voyage, the dragon fight, or the flood? All that constitutes the theme of lecture VI.