'Tis the voice of my sister at home,
Resign'd to the treasures above,
Inviting the strangers to come,
And feast at the banquet of love.

'Tis a spirit cut loose from its chain,
'Tis the voice of a culprit forgiven,
Restored from a prison of pain,
With th' sound of a concert from heaven.

'Tis a beam from the regions of light,
A touch of beatific fire;
A spirit exulting for flight,
With a strong and impatient desire.

'Tis a drop from the ocean of love,
A foretaste of pleasures to come,
Distill'd from the fountain above,
The joy which awaits her at home.

George Moses Horton

http://www.poemhunter.com/poem/on-the-conversion-of-a-sister/