In this passage from "Drums of Autumn" by Diana Gabaldon, the narrator experiences an abrupt shift from tranquility to intense fear. Sitting peacefully by a stream, the serene summer night is shattered by the memory of a bear attack, leaving the narrator feeling overwhelmed. The contrasting sensations of calmness and panic create a surreal moment, prompting them to sit down as they deal with the physical and emotional aftermath of shock.

The imagery emphasizes the unpredictability of life, where peaceful moments can be disrupted suddenly by unforeseen dangers. As the narrator rests, they are not only processing the immediate effects of fear but also reflecting on how quickly circumstances can change, illustrating a deeper theme of vulnerability in the face of nature's power.