Final answer:
The imagery in Helen Keller's excerpt portrays her sense of disorientation and longing before her education, highlighting the transformative impact of learning.
Explanation:
The imagery in the excerpt from The Story of My Life by Helen Keller serves to convey the sense of disorientation and longing Helen felt before her education began. The comparison to a ship lost at sea in dense fog without guidance symbolizes Helen's feeling of being adrift without understanding or communication tools. This imagery allows readers to empathize with Helen's initial state of confusion and the transformative impact of education in bringing light and understanding.
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