The second Triad, which is germinating
In such wise in this sempiternal spring,
That no nocturnal Aries despoils,

Perpetually hosanna warbles forth
With threefold melody, that sounds in three
Orders of joy, with which it is intrined.

The three Divine are in this hierarchy,
First the Dominions, and the Virtues next;
And the third order is that of the Powers.

Then in the dances twain penultimate
The Principalities and Archangels wheel;
The last is wholly of angelic sports.

These orders upward all of them are gazing,
And downward so prevail, that unto God
They all attracted are and all attract.

And Dionysius with so great desire
To contemplate these Orders set himself,
He named them and distinguished them as I do.

But Gregory afterwards dissented from him;
Wherefore, as soon as he unclosed his eyes
Within this heaven, he at himself did smile.

And if so much of secret truth a mortal
Proffered on earth, I would not have thee marvel,
For he who saw it here revealed it to him,

With much more of the truth about these circles.”

Paradiso: Canto XXIX