Final answer:
Mahoney's remark about the vocabulary of vision refers to the way in which language and images can create a vivid and impactful experience for the reader.
Step-by-step explanation:
Mahoney's remark about the vocabulary of vision refers to the way in which language and images can create a vivid and impactful experience for the reader. When a poet uses poetic images, they can create a sense of vision in the reader, making them feel as though they are actually experiencing the object or concept being described. This can be seen when a poem evokes emotions or thoughts in the reader based on the images that are presented.