How to use a map

C. S. Lewis' very brief Preface in The Discarded Image: An Introduction to Medieval and Renaissance Literature is suggestive.

He complains of a certain kind of scholarship that can tend to lead people out of the texts themselves rather than into them.

There can be a similar problem with commentaries, theological works, Bible reading notes and sermons. The aim must be to open up the text and let it speak.

Lewis warns that we must not be like a traveler who is so absorbed with the map that he fails to enjoy the scenery before him. In other words, the text itself must be primary: it is the goal, the destination, the real object of attention. Any other helps should be just that: helps, not ends in themselves. We do not want to stumble into lamp-posts because our noses are stuck in some A to Z.

Yet, Lewis suggest, there can be usefulness in consulting a map or guidebook before a journey. It may lead us to admire and appreciate the landscape more easily or fully and we may notice some prospects that we might have ignored if we simply followed our noses.

If we tend to consult a commentary only when we come to an apparent problem, we may not notice depths in that which is deceptively simple.