My life closed twice before its close;
It yet remains to see
If Immortality unveil
A third event to me,
So huge, so hopeless to conceive,
As these that twice befell.
Parting is all we know of heaven,
And all we need of hell.
Emily Dickinson
http://www.poemhunter.com/poem/my-life-closed-twice-before-its-close/