The quote emphasizes resilience in the face of adversity, suggesting that no matter the challenges or provocations one encounters, maintaining a calm and composed demeanor can be a powerful response. By "grinning and walking through the cannon smoke," the speaker implies that staying unfazed can confound opponents, making them uneasy when they can't provoke a reaction. This attitude not only showcases inner strength but also a strategic approach to conflict.

In "In the Electric Mist With Confederate Dead," author James Lee Burke uses this metaphor to illustrate a broader theme of perseverance. It suggests that one’s ability to endure difficulties without succumbing to despair or anger can ultimately prevail over external turmoil. By holding fast to composure, an individual may undermine the efforts of those who wish to disturb their peace, creating a distinctive sense of power that can shift the dynamics of any situation.