Although it is undoubtedly not professional or prudent to sit at a table and allow oneself to admire the hideous wonder of the white screen with the cursor flashing like a macabre chronometer, doing so sometimes proves curious, when the result is that the brain picks up the idea from an obscure corner of the mind, and then develops it in detail, without having prepared for it. Kardec asserts that this is a very natural metaphysical process which, although intelligible, once accepted calls into question the limits, identity and individual capacities of the being. So the question, which perhaps contains a valuable lesson: to what extent do they matter?