In the book "Swan Song" by Robert R. McCammon, the author reflects on the state of human resilience and mental clarity in times of crisis. He suggests that people often succumb to a weakened spirit, which can be attributed to a loss of focus and an overload of trivial distractions, likened to "mental junk food." This metaphor emphasizes how superficial thoughts and influences can degrade our mental strength and clarity, leading to a decline in overall well-being.

The phrase underlines the importance of nurturing the mind and spirit, advocating for a diet of quality thoughts and meaningful engagement. McCammon's narrative serves as a cautionary tale about the dangers of allowing oneself to be overwhelmed by distractions and negativity, ultimately prompting readers to cultivate their inner strength and resilience amid chaos and adversity.