A shadow is a dark area or shape produced by a body coming between rays of light and a surface. It occurs when an object blocks light, creating a silhouette that can vary in size and shape depending on the light source's angle and intensity. Shadows are not only a natural occurrence but also play a significant role in art and photography, adding depth and dimension to visual compositions. In addition to their physical presence, shadows often carry symbolic meanings in literature and culture, representing concepts such as mystery, fear, or the subconscious. They can evoke emotions and provoke thought, making them a powerful tool for artists and storytellers alike.