midday
During the Other-World night it is difficult to move about , on account of the vividness with which the things of this world are visible . It becomes a riddle to explain why , if this is the case , we in this world catch no glimpse of the Other-World . It is due , perhaps , to the comparatively vivid illumination of this world of ours . Plattner describes the midday of the Other-World , at its brightest , as not being nearly so bright as this world at full moon , while its night is profoundly black . Consequently , the amount of light , even in an ordinary dark room , is sufficient to render the things of the Other-World invisible , on the same principle that faint phosphorescence is only visible in the profoundest darkness . I have tried , since he told me his story , to see something of the Other-World by sitting for a long space in a photographer 's dark room at night . I have certainly seen indistinctly the form of greenish slopes and rocks , but only , I must admit , very indistinctly indeed .