By systematically deconstructing and analysing scientific texts for irrational unconscious motivations, new scientific associations can be produced. Four categories are suggested as guidelines for the analysis of science: metaphors, scientific parapraxes, lacunae, and scientific myths. The most important are the conceptual lacunae, for they constitute an integral part of the scientific construction. Examples from various disciplines are discussed in order to show that unconscious elements in science are a universal phenomenon. The function of scientific myths is explained. And the hypothesis is tested on psychoanalysis itself, in this way providing a full explanation of how and why blind spots block scientific creativity.