The explanation as to why you think the Cherokee felt differently about learning Sequoyah's syllabary than Zitkala-Sa did about learning English is that the author believes that the dark days overshadow the good.
This is shown in the excerpt, "...left so long a shadow that it darkens the path of years..." and "These sad memories rise above those of smoothly grinding school days."
This refers to the use of words to tell a story, with the aid of a narrator, showing the sequence of action.
Hence, we can see that the explanation as to why you think the Cherokee felt differently about learning Sequoyah's syllabary than Zitkala-Sa did about learning English is that the author believes that the dark days overshadow the good.
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