"To You" is an 1856 poem by Walt Whitman. In the poem, Whitman suggests that readers, whom he addresses directly, have not fully understood themselves, writing, -

Which quotation from "To You" most effectively illustrates the claim?
A) "You have not known what you are, you have slumber'd upon yourself / all your life, / Your eyelids have been the same as closed most of the time."
should have chanted nothing / but you."
D) "I will leave all and come and make the hymns of you, / None has understood you, but I understand you."

The most effective quotation from "To You" that illustrates the claim is:

D) "I will leave all and come and make the hymns of you, / None has understood you, but I understand you."