Complexity, through creative processes, leads us to a new understanding of the natural world, of ourselves, and of our place in the Universe. This is of great importance for us to understand the way in which matter is organized, producing live systems, and the way in which the faculty of thinking emerges from these live systems. In psychoanalysis, Bion can be considered as a thinker of complexity who observes thinking: this paper aims at investigating the role of creative processes in Bion`s psychoanalytic approach. Based on creative processes as a central axis, we shall be speaking of a dialogic approach between complexity in Science, the theory of knowledge in actuality, and psychoanalysis in Bion, focusing specifically, on the discussion of some of the possible consequences that such an interchange brings into psychoanalytic practice.