Even as O'Brien opens The Things They Carried, he sets forth the novel's primary themes of memory and imagination and the opportunity for mental escape that these powers offer. For example, as Lt. Cross moves through the rigorous daily motions of combat duty, his mind dwells on Martha. Importantly, as he thinks about Martha, he does not merely recall memories of her; instead he imagines what might be, such as "romantic camping trips" into the White Mountains in New Hampshire. O'Brien describes these longings of Lt. Cross as "pretending." Pretending is a form of storytelling, that is, telling stories to oneself. O'Brien underscores the importance of Lt. Cross's actions by emphasizing the artifacts — Martha's letters and photograph — and characterizes Lt. Cross as the carrier of these possessions as well as of his love for Martha.
O'Brien moves from employing the literary technique of describing the soldiers' physical artifacts to introducing the novel's primary characters. The minute details he provides about objects that individuals carry is telling, and particular attention should be paid to these details because they foreshadow the core narratives that comprise the novel. This technique of cataloging the things the soldiers carry also functions to create fuller composites of the characters, and by extension make the characters seem more real to readers.
