Abaixo, o poema citado no filme e que o inspirou, com destaque para o trecho que lhe dá título.
"...Ah wretch! believ'd the spouse of God in vain,
Confess'd within the slave of love and man.
Assist me, Heav'n! but whence arose that pray'r?
Sprung it from piety, or from despair?
Ev'n here, where frozen chastity retires,
Love finds an altar for forbidden fires.
I ought to grieve, but cannot what I ought;
I mourn the lover, not lament the fault;
I view my crime, but kindle at the view,
Repent old pleasures, and solicit new;
Now turn'd to Heav'n, I weep my past offence,
Now think of thee, and curse my innocence.
Of all affliction taught a lover yet,
'Tis sure the hardest science to forget!
How shall I lose the sin, yet keep the sense,
And love th' offender, yet detest th' offence?
How the dear object from the crime remove,
Or how distinguish penitence from love?
Unequal task! a passion to resign,
For hearts so touch'd, so pierc'd, so lost as mine.
Ere such a soul regains its peaceful state,
How often must it love, how often hate!
How often hope, despair, resent, regret,
Conceal, disdain — do all things but forget.
But let Heav'n seize it, all at once 'tis fir'd;
Not touch'd, but rapt; not waken'd, but inspir'd!
Oh come! oh teach me nature to subdue,
Renounce my love, my life, myself — and you.
Fill my fond heart with God alone, for he
Alone can rival, can succeed to thee.
How happy is the blameless vestal's lot!
The world forgetting, by the world forgot.
Eternal sunshine of the spotless mind!
Each pray'r accepted, and each wish resign'd;
Labour and rest, that equal periods keep;
"Obedient slumbers that can wake and weep;"
Desires compos'd, affections ever ev'n,
Tears that delight, and sighs that waft to Heav'n.
Grace shines around her with serenest beams,
And whisp'ring angels prompt her golden dreams.
For her th' unfading rose of Eden blooms,
And wings of seraphs shed divine perfumes,
For her the Spouse prepares the bridal ring,
For her white virgins hymeneals sing,
To sounds of heav'nly harps she dies away,
And melts in visions of eternal day.
Far other raptures, of unholy joy:
When at the close of each sad, sorrowing day,
Fancy restores what vengeance snatch'd away,
Then conscience sleeps, and leaving nature free,
All my loose soul unbounded springs to thee."