This quote suggests that even well-adjusted individuals, when taken out of their natural environment or state, may experience unexpected changes in their behavior and health. It highlights the unpredictability inherent in nature and how external conditions can influence natural processes. The notion of individuals whom we see thriving yet suddenly failing to function raises questions about the stability of their circumstances.

Furthermore, the passage implies that when such individuals reproduce, their offspring may differ from their parents, indicating that captivity can lead to irregularities in development and behavior. This concept invites reflection on how the environment molds identity and abilities, and it encourages a deeper understanding of the complexities of life, especially in controlled settings.