* "Shadows" signifies a lack of clarity and reality. The world she sees is not the vibrant, full experience of the outside world but a pale reflection.
* "World" represents the real, tangible world beyond the Lady's tower. This is a world of activity, life, and color.
* "Appear" suggests that the Lady's view is not direct but rather an illusion, something created by the reflection in the mirror.
In the context of the poem, this line highlights the Lady's isolation and her yearning for the world beyond her tower. She's trapped by the curse, confined to see the world only through a magical mirror. This creates a disconnect from the world, making her experience of it incomplete and ghostly.
The "shadows" also foreshadow the Lady's ultimate fate. The Lady's longing for the real world, despite the curse, leads her to break the rules, causing her to experience the world directly. This, however, ultimately leads to her demise.
In essence, the "shadows of the world appear" symbolize the Lady's limited and ultimately tragic view of the world, which is both beautiful and dangerous. It's a reminder that perception and reality are not always the same, and that seeking a connection with the world can have unexpected consequences.