方位是人类最初认识世界的重要的和必要的内容。其方位的确定是以人体自身为中心的前后、左右、上下，这是六维空间。我国古人好讲四正四维，即列为平面。四正四维，均在平面，本无上下之分。若以天地之形势言之，则北高而南下；以朝廷之定分言之，则君之南面者位在北，里... Orientation is an important and necessary part of human understanding of the world at first. Its orientation is determined by the body itself as the center before and after, about, up and down, this is a six-dimensional space. My ancients say four positive four-dimensional, that is classified as a plane. Four four-dimensional, are in the plane, the top-and-bottom points. If the situation in the world of words, then north and south; to the court set the word, then the king of the south in the north, where ...