The quote emphasizes that ignorance can shield people from uncomfortable truths. It suggests that even if someone is surrounded by significant issues, such as living on a toxic waste dump, they may remain blissfully unaware of their situation as long as they don't investigate further. Their perception of reality, defined by a beautiful garden and green grass, can lead to a false sense of security and happiness.

This observation from Jodi Picoult's "Leaving Time" illustrates the idea that sometimes, people choose to overlook unpleasant realities to maintain a sense of normalcy. However, this denial can be harmful, as understanding the truth is crucial for addressing issues and making informed decisions. Without digging deeper, they may miss essential aspects of their environment and well-being.