The quote expresses a contrasting mix of feelings, where the speaker waves goodbye to someone while secretly harboring darker thoughts about that person. It highlights a sense of impending conflict or revenge that the speaker anticipates in the future. This duality of polite appearance versus inner thoughts adds depth to the character's emotions.

In "Drums of Autumn," Diana Gabaldon weaves complex relationships and emotions throughout her narrative. The protagonist's desire to harm someone despite a pleasant facade reflects the intricate dynamics of human interactions, where external behavior can mask true intentions. This tension between appearance and reality is a recurring theme in Gabaldon's work, inviting readers to explore the complexities of loyalty and betrayal.