The relationships between imagery and points in space is as old as astrology, and seems natural to the human imagination. The use of landmarks as a way of mapping out a visual space is one of the most helpful thought processes that I teach my students... it can help with proportion, perspective, foreshortening, and a host of other drawing issues.
Points in Space, charcoal on paper, 24"x18"
This drawing has its issues, but it is a good example of how landmarks can be used to map out the relationship of a human figure to its space.