Visualize a master safe-cracker, patiently and expertly plying his craft. In a somewhat similar fashion, I possess the unique ability to identify the combinations which will unlock the doors which open into the hidden recesses of the reader's mind and heart. My entrance is swift and silent; and then I roam at will through those unseen passageways, effecting the desired changes: adding knowledge and skill-sets, deleting fallacies, constructing and deconstructing entire worldviews, shocking the system, engendering calm contemplation, nurturing the soul and, when appropriate, launching the imagination on a guided tour through this world, other worlds, and into the heavens.And when I am done, I slip out quietly, invisibly, leaving behind no evidence of my presence, except for a life changed forever.