In military training, ground troops learn to identify the terrain they move through, to tread carefully, and be watchful. Why? Because they may be walking through a minefield. They can lose both their
lives and the war if they do not “see” or discern. However, the troops do not focus entirely on possible mines or even on an enemy that might be lurking behind the bushes. Their primary attention is on
accomplishing their mission. They learn to keep their concentration on the intended outcome while staying alert to danger along the way. To be a victor, one cannot place all their attention on the possible problems encountered along the way.
From the book "Eyes and Wings: God’s Empowerment for Today’s church: Prophetic Eyes and Apostolic Action"