Gone
Anniversary euphemism
"Went up a year" = died one year ago today. Dickinson uses vertical motion for death throughout her work—the opposite of "went down."
Tourist metaphor
Death as tourism—temporary travel, not permanent exile. Notice how this contradicts "Did not talk of returning" two stanzas later.
Botanical heaven
"New species" to pick—heaven imagined as a garden with flowers unavailable on earth. Dickinson was an avid gardener who pressed hundreds of specimens.
Nautical departure
"Moorings" = ropes tying a boat to shore. Death becomes a ship leaving port, with the dying person as passenger, not corpse.
Minimal difference
After all this buildup, the speaker admits she knows almost nothing about what actually happened—just "a difference, a daisy." The poem deflates its own metaphors.