In the book "I Know Why the Caged Bird Sings," Maya Angelou emphasizes the importance of the human voice in giving words and stories their full emotional depth. She suggests that it is through spoken expression that language transforms from mere words into powerful messages filled with personal and universal meaning.

Angelou highlights that without the human voice, the true essence and emotional resonance of words can be lost. She believes that voice adds a vital dimension, allowing individuals to connect more deeply with the stories and truths they tell, making communication more authentic and impactful.