In Eudora Welty's novel "The Optimist's Daughter," the imagery of a child being sent to sleep under a beautiful, velvety cloak of words evokes a sense of enchantment. The description suggests a world filled with vibrant stories and rich narratives that wrap around her like a comforting blanket. This atmosphere is reminiscent of fairy tales, where imagination thrives and dreams are woven into reality.

The phrase illustrates the power of storytelling as a means to transport individuals into different realms. It highlights how words have the ability to nurture the mind and spirit, allowing one to explore fantastical adventurers even in sleep. Through this metaphor, Welty emphasizes the importance of literature in shaping our experiences and emotions, creating a soothing sanctuary for the young dreamer.