The quote reflects the character's deep sense of humility and self-awareness. Her lack of vanity indicates that she does not seek validation through her appearance or by flaunting her scars. Instead, she chooses to conceal them, not out of shame, but to spare others discomfort, highlighting her empathetic nature.
Furthermore, the mention of the "mark of the lion" suggests she bears significant experiences that others do not understand. This symbolizes her inner strength and resilience, which remain unnoticed by those around her. The quote overall emphasizes the distinction between external appearances and internal battles, showcasing the strength of someone who truly understands their own worth.