In a world where people's shadows can interact with other shadows as though they were physical entities, Amara and Kwame are standing in a field on a sunny day. Amara's shadow falls directly in front of her, and Kwame's shadow falls directly in front of him. If Amara and Kwame walk towards each other, what will happen when their shadows meet? Respond very briefly.
In this world, because shadows can interact with each other physically, when Amara and Kwame walk towards each other, their shadows will also approach one another. When their shadows meet, the shadows will either meld with one another or create a barrier, depending on the nature of their interaction as dictated by the magical property of this world. If the shadows meld, it would be as if the physical persons are passing through one another, but since this is about shadows, the actual people will encounter no resistance and can continue to walk past each other unaffected. If the shadows create a barrier, since they interact as physical entities, Amara and Kwame would need to stop moving forward when their shadows touch, otherwise, they would be attempting to move through what's effectively a shadow wall.