In "The Invention of Wings," Sue Monk Kidd presents themes of courage and the importance of taking bold actions in the face of challenges. The quote, "If you must err, do so on the side of audacity," encapsulates the idea that making daring choices, even if they may lead to mistakes, is more valuable than playing it safe. Being audacious encourages growth and change, which is essential in overcoming societal constraints and personal limitations.

The narrative supports this notion by exploring the lives of women fighting for their freedom and equality. As characters navigate their struggles, the story illustrates that embracing audacity can lead to significant transformation. Thus, the book encourages readers to adopt a mindset where taking risks is embraced rather than feared, highlighting the necessity of courage in pursuing one’s beliefs and dreams.