In Ray Bradbury's "The Halloween Tree," the transition from day to night is depicted vividly, portraying how quickly time can pass. The phrase illustrates the sudden arrival of darkness as night emerges from the shadows cast by the trees. It symbolizes the shift from the familiar safety of day into the mysterious and often frightening aspects of the night.

This transformation reflects the themes of change and the unknown, which are prominent in the book. Bradbury's writing evokes a sense of wonder about the night, emphasizing its enchanting and sometimes eerie nature, inviting readers to explore the magic hidden within the dark.