Somewhere or Other

BY CHRISTINA ROSSETTISomewhere 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.

I feel like this poem is expressing the feeling of missing something. When it says “a face not seen , a voice not heard “ I liked that part because it’s explaining the what if’s .