Meaning: This sentence creates a sense of mystery and magic by describing the way the shadows dance and the moonlight glows.
Choice of Words: The noun "shadows" refers to the areas of darkness created by the absence of light. The verb "dance" is used to describe the way the shadows move and change shape. The noun "moonlight" refers to the light that comes from the moon. The verb "glows" is used to describe the way the moonlight shines and illuminates the night.