Montag realizes fire can be positive when he flees to the river.
At this point, Montag has escaped from society and is on the run. He flees to the river, where he meets a group of other men gathered around a campfire.
Now, fire takes on a positive connotation. Before, it was a source of destruction; here, it is a source of comfort and light. Montag realizes that fire is not necessarily bad.
