Pure Phenomenology refers to the type of Phenomenology proposed by Husserl, the purpose of which was to create a taxonomy of the mind. Husserl believed that before a science of Psychology would be possible, we would first need to understand the essences of those mental processes in terms of which we understand and respond to the world. Pure Phenomenology is likewise, the methodology proposed by Husserl to discover the essence of those mental acts and processes by which we gain all knowledge.