somewhere or other: love poem

Somewhere or other there must surely be 

The face not seen, the voice not heard, 

The heart that not yet—never yet—ah me! 

Made answer to my word. 

Somewhere or other, may be near or far; 

Past land and sea, clean out of sight; 

Beyond the wandering moon, beyond the star 

That tracks her night by night. 

Somewhere or other, may be far or near; 

With just a wall, a hedge, between; 

With just the last leaves of the dying year 

Fallen on a turf grown green. 

This poem is by Christina Rossetti, I looked over a bunch of the poems and for some reason this one really stuck out to me. I like how the author repeats "Somewhere or other, may be far or near" I like the sad sense it has to it. "With just a wall, a hedge, between; with just the last leaves of the dying year." I just really enjoy how the poem flows, its really interesting to me. Im not a big fan of poems and Im not entirely sure how I am supposed to interpret it... But there is something about it that makes me curious. for example what kind of love is this?