Give the single name that both fills all three blanks in the excerpt from a Poe poem below as well as names the title.
Thus I pacified Psyche and kissed her,
And tempted her out of her gloom—
And conquered her scruples and gloom:
And we passed to the end of the vista,
But were stopped by the door of a tomb—
By the door of a legended tomb;
And I said—"What is written, sweet sister,
On the door of this legended tomb?"
'Tis the vault of thy lost ___!"