It's a reminder of the value of silence and quiet. A sample:(Photo: surreykarate.co.uk)
quiet has existential value: being alone with ourselves. We often use noise to take our minds off our minds. But in the quiet, all of our anxieties and longings return. In the long run, it's healthy to heed conscience's nagging voice. Silence encourages analysis, reflection, speculation. In short, a more mindful life.