The Trained Memory is a self-help/psychology classic text by Warren Hilton that helps individuals in personal and business situations, and it has this passage: " Four Special Memory Processes You have learned of the sense-perceptive and judicial processes by which your mind acquires its knowledge of the outside world. You come now to a study of the phenomenon of memory, the instrument by which your mind retains and makes use of its knowledge, the agency that has power to resurrect the buried past or power to enfold us in a Paradise of dreams more perfect than reality"