VISUALIZATION: The ability to create mental images, of what it is you desire in your life.  It is based on the metaphysical premise that all thought creates images, or thought forms, on the astral planes.  When enough mental energy is added to these thought forms, they are "pushed" out of the astral plane into the physical plane as concrete manifestations of the thought.  Visualization requires disciplined concentration and practice to be effective.  It also requires that you know what you want and ACCEPT RESPONSIBILITY for what your visualization manifests!  As in all parts of metaphysical study, you do not have the right to visualize anything that will harm another.