In the quote from Franz Kafka's "Letters to Felice," the author expresses the complex emotions tied to love and longing. He reveals how deeply his feelings for Felice impact his internal state, highlighting the duality of peace and turmoil that accompanies his heart's response. This reflects a profound connection where Felice embodies both calmness and chaos in his emotional landscape.

Kafka's words evoke the intensity of romantic feelings, illustrating how the presence of a loved one can elicit both tranquility and confusion. The heartbeat metaphor serves to emphasize the physical manifestation of these emotions, suggesting that love stirs a visceral reaction within him, blending tenderness with the anxiety of desire.