This quote delves into the complex nature of human emotion and how enduring suffering can shape a person's character. When someone is described as having 'known sadness,' it implies a depth of experience that goes beyond superficial feelings. Sadness, in this context, is not merely a fleeting emotion but a defining aspect of who she is. The narrator's reflection that they'd only just realized this as they wrote suggests a moment of revelation or understanding about her essence. It hints at the idea that our hardships and emotional struggles are integral to our identities—we carry them within us, influencing our behavior, perspectives, and kindness. Sadness, when recognized and embraced, can foster empathy, compassion, and a deeper appreciation for life's complexities. The phrase 'and it has made her kind' underscores this notion—her experiences with sadness have cultivated qualities of kindness and understanding. It raises questions about the transformative power of pain and whether suffering inherently leads to a more compassionate outlook. This insight can serve as a reminder that difficulties and grief are not merely burdens but also essential parts of growth and self-awareness. By acknowledging the sadness someone has endured, we gain a fuller understanding of their character, and perhaps, we are encouraged to view emotional pain not solely as something to be endured but as an intrinsic component that shapes our kindness and humanity.

Reflecting on this, it prompts us to consider how our own struggles inform who we are and influence how we relate to others. The recognition of sadness within a person does not diminish their strength or beauty; instead, it highlights their resilience and capacity for kindness born from adversity. It is a testament to the human condition—that the depths of our pain can lead us to become more empathetic and gentle towards others. As such, this quote beautifully captures the idea that through understanding and acceptance of our emotional wounds, we can cultivate a deeper, more authentic kindness within ourselves.