What ability of Dickinson’s does Lewis find encouraging?

Lewis find encouraging how Emily Dickinson's writing style is most certainly unique. She used extensive dashes, dots, and unconventional capitalization, in addition to vivid imagery and idiosyncratic vocabulary. Instead of using pentameter, she was more inclined to use trimester, tetrameter, and even dimeter at times

caminas makes the most sense here since it means to walk.

you stated "which of the following" but i don't see anything else