No arid vapour any farther rises
Than to the top of the three steps I spake of,
Whereon the Vicar of Peter has his feet.

Lower down perchance it trembles less or more,
But, for the wind that in the earth is hidden
I know not how, up here it never trembled.

It trembles here, whenever any soul
Feels itself pure, so that it soars, or moves
To mount aloft, and such a cry attends it.

Of purity the will alone gives proof,
Which, being wholly free to change its convent,
Takes by surprise the soul, and helps it fly.

First it wills well; but the desire permits not,
Which divine justice with the self-same will
There was to sin, upon the torment sets.

And I, who have been lying in this pain
Five hundred years and more, but just now felt
A free volition for a better seat.

Therefore thou heardst the earthquake, and the pious
Spirits along the mountain rendering praise
Unto the Lord, that soon he speed them upwards.”

So said he to him; and since we enjoy
As much in drinking as the thirst is great,
I could not say how much it did me good.

And the wise Leader: “Now I see the net
That snares you here, and how ye are set free,
Why the earth quakes, and wherefore ye rejoice.

Now who thou wast be pleased that I may know;
And why so many centuries thou hast here
Been lying, let me gather from thy words.”