Imagery is a literary device that uses descriptive language to create vivid mental pictures for the reader, appealing to the senses of sight, sound, taste, touch, and smell. It helps to evoke emotions and deeper understanding of the text by painting scenes or conveying experiences in a way that feels real. In Appalachian poetry, imagery is often rooted in the natural landscape and cultural elements unique to the region, allowing readers to connect with the themes and emotions conveyed by the poet.