In this passage from Diana Gabaldon's "Voyager," a character named Roger faces a significant challenge. The question posed highlights a metaphorical leap into the unknown. It emphasizes the fear and uncertainty associated with facing daunting situations, particularly those that may hold hidden dangers, like lurking creatures in dark waters.

The speaker’s inquiry invites contemplation about courage and the human instinct to confront fear. The imagery of diving into darkness underscores the psychological struggle of stepping into unfamiliar territory, even when the risks are unknown and the stakes are high. It reflects a deeper theme of exploration and the bravery required to embark on new journeys.