There are far too many to choose from, so I'll go with one that has been particularly moving me recently: David Francey's "Green Fields". It has some really bittersweet moments but ends on a wonderfully high note. :)

...And I married out of high school to a girl I knew forever
And we settled down together, and three children came;
And the life that we were livin' was forgive and be forgiven,
But wherever I saw sunshine
She could only see rain.

Left me standing in the cornfield
With the dry land all around me,
And I felt my heart sinking like the setting sun;
And the sky was like the ocean pouring down around me,
I used to be so proud, now I was all undone...

(but later)

But when I was good and ready
When I stood up strong and steady,
Love came with the letters in the morning mail;
And I knew that I had found her
When I put my arms around her;
When I see her now in the morning how that sunrise pales.

Leaves me standing in the cornfield
With the dry land all around me,
And I feel myself rising like the morning sun;
And the sky is like the ocean,
White and blue and rollin'
And I know in my own heart she's the only one.

*shiver*

That's just yummy. :)

Molly