Pat is reminded painfully of Bets in the spring after her death:

All had a message for her and all made her think of Bets… even yet Pat’s voice quivered when she pronounced that name.

Where was Bets?
“In what ethereal dances,
By what eternal streams”
did her footsteps wind?

“I wonder if Bets isn’t homesick in heaven for THIS?” Pat pointed to the white lilac over the garden fence. “And she must miss the sunsets. This is just such a night as she loved, Judy. Oh, Judy, last spring she was HERE. All winter at Queen’s, where she had never been, it wasn’t so hard. But here…everything seems to speak of her. To-night, when I smell that white lilac it seems to me that she must be near. She doesn’t seem dead any more. She just seems around the corner somewhere, still dear and loving. But oh, I want her so!”

-Pat of Silver Bush ch.35,1

To One in Paradise
By Edgar Allan Poe

Thou wast all that to me, love,
For which my soul did pine-
A green isle in the sea, love,
A fountain and a shrine,
All wreathed with fairy fruits and flowers,
And all the flowers were mine.

Ah, dream too bright to last!
Ah, starry Hope! that didst arise
But to be overcast!
A voice from out the Future cries,
“Onward!”- but o’er the Past
(Dim gulf!) my spirit hovering lies
Mute, motionless, aghast!

For, alas! alas! with me
The light of life is o’er!
“No more– no more– no more,”
(Such language holds the solemn sea
To the sands upon the shore)
Shall bloom the thunder-blasted tree
Or the stricken eagle soar!

And all my hours are trances,
And all my nightly dreams
Are where thy dark eye glances,
And where thy footstep gleams-
In what ethereal dances,
By what eternal streams.

Alas! for that accursed time
They bore thee o’er the billow,
From Love to titled age and crime,
And an unholy pillow!–
From me, and from our misty clime,
Where weeps the silver willow!

Source

“To One in Paradise” is part of the tale “The Assignation”
The Lady’s Book, January 1834. Online, Internet: http://www.pambytes.com/poe/poems/paradise.html