Final answer:
The welding shut of the abbey doors symbolizes isolation, consequences of actions, and social divide.
Step-by-step explanation:
The welding shut of the abbey doors in this context symbolizes Prospero and his guests sealing themselves off from the outside world, both literally and figuratively. It represents their isolation and their choice to cut themselves off from the consequences of their actions.
By welding the doors shut, Prospero and his guests are unable to escape their fate, which is ultimately a result of their own actions and choices. This symbolizes their inability to avoid the consequences of their past actions and the inevitability of their fate.
This symbol can also be interpreted as the upper class sealing off the lower class for their protection. It signifies the social divide and the privileged class's efforts to insulate themselves from any threat or disruption from the lower class.
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