Why did Walt Whitman write the unexpressed?

Walt Whitman did not write a poem called "The Unexpressed." There is no record of a poem with that title by Whitman.

It's possible you are thinking of a different poem, or perhaps you've misremembered the title.

Would you like to try rephrasing your question? For example:

* Are you asking about a specific theme in Whitman's work related to "the unexpressed"?

* Are you wondering about a particular poem that deals with unspoken thoughts or feelings?

Please provide more information so I can better understand your inquiry.