Source identified1
“I reason, earth is short, And anguish absolute, And many hurt; But what of that?”
The poem begins from mortality and undeniable anguish, then presses beyond those observations by asking what explanatory or consoling conclusion can actually follow from them.
Source note: “Earth Is Short,” Poems: First Series (1890), Project Gutenberg #12242. The poem proceeds into questions about heaven and God; its religious questions remain questions rather than verified metaphysical claims.