Source identified1
“My life closed twice before its close; It yet remains to see If Immortality unveil A third event to me.”
The speaker treats profound separations as deaths within a still-living life, leaving the final meaning of another separation to the poem's religious-metaphysical horizon.
Source note: “Parting,” Poems: Third Series (1896), Project Gutenberg #12242. The poem is lyric and metaphysical; its language of immortality is not presented as empirical evidence about an afterlife.