Imagination is the power of thought to imagine (in delusion) or create images (paintings, essays, etc.) events based on a person's reality or experience in general. This term is technically used in psychology as a process of rebuilding the perception of an object which is first given a perception of understanding. Since the use of the term is contrary to that of ordinary language, some psychologists refer to this process as "depicting" or "image" or as a reproduction that contradicts the "productive" or "constructive" imagination. Image imagery is understood as something seen by the "mind's eye". A hypothesis for the evolution of human imagination is that it allows any conscious being to solve the problem (and therefore improve fitness) of the individual by the use of soul simulations.