Depression is a complex mental health condition that manifests in different ways. Andrew Solomon began writing this book based on his own battle against the illness. Solomon describes experiencing a profound sense of despair, emptiness, and hopelessness that turned his life into a nightmare. He felt like he was living under a dark cloud, unable to find joy or meaning in everyday activities.

There are still many misunderstandings about depression. Some people believe it is a sign of personal weakness or a lack of willpower, but this is untrue. Depression is a complex disorder influenced by numerous biological, psychological, and environmental factors. Another common myth states that depression is just temporary sadness that will eventually go away. However, depression can be a chronic and debilitating condition that requires professional help. Waiting for it to resolve on its own can potentially worsen symptoms and prolong suffering.

According to a common misconception, depression is solely a "first-world problem." When Solomon visited Cambodia after the devastating Khmer Rouge regime, he couldn't help but feel the weight of the country's past. Everywhere he looked, he saw reminders of the atrocities that had torn families apart and shattered communities. Yet, somewhere between the ruins, he discovered stories of remarkable resilience.

He met Nuon Phaly, a remarkable woman known for helping other depressed women. Despite others giving up on these women, Nuon Phaly has successfully brought them back to life. First, she taught these women to forget their painful past through daily exercises and distractions. She developed a community of support and love, using grooming rituals to encourage bonding and emotional connection among the women. Her methods not only healed individuals but also challenged societal taboos and prejudices surrounding mental health. Thanks to Nuon Phaly, Solomon gained a deeper understanding of the complex interplay between trauma, resilience, and mental health.