I think that what touches you most about this passage is the story itself, the links that it make with the Odyssey, the fact that Dante adds a new layer of legend to the already world-celebrated mythological quest of Odysseus. There is also the point that the terza rima adds enchantment to it, by weaving the narration in a current of sonorous sounds.
But, as poetry, as poetic language, I don’t think that the passage you quoted is more beautiful than things like this:
His legs bestrid the ocean: his rear'd arm
Crested the world: his voice was propertied
As all the tuned spheres, and that to friends;
But when he meant to quail and shake the orb,
He was as rattling thunder. For his bounty,
There was no winter in't; an autumn 'twas
That grew the more by reaping: his delights
Were dolphin-like; they show'd his back above
The element they lived in: in his livery
Walk'd crowns and crownets; realms and islands were
As plates dropp'd from his pocket.
(…)
For Orpheus' lute was strung with poets' sinews,
Whose golden touch could soften steel and stones,
Make tigers tame and huge leviathans
Forsake unsounded deeps to dance on sands.
(…)
Besides, this Duncan
Hath borne his faculties so meek, hath been
So clear in his great office, that his virtues
Will plead like angels, trumpet-tongued, against
The deep damnation of his taking-off;
And pity, like a naked newborn babe,
Striding the blast, or heaven’s cherubim, horsed
Upon the sightless couriers of the air,
Shall blow the horrid deed in every eye,
That tears shall drown the wind.
(…)
Let heaven kiss earth! now let not Nature's hand
Keep the wild flood-confin'd! let order die!
And let this world no longer be a stage
To feed contention in a lingering act;
But let one spirit of the first-born Cain
Reign in all bosoms, that, each heart being set
On bloody courses, the rude scene may end,
And darkness be the burier of the dead!
(…)
Tomorrow, and tomorrow, and tomorrow,
Creeps in this petty pace from day to day,
To the last syllable of recorded time;
And all our yesterdays have lighted fools
The way to dusty death. Out, out, brief candle!
Life's but a walking shadow, a poor player,
That struts and frets his hour upon the stage,
And then is heard no more. It is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
(...)
Look, love, what envious streaks
Do lace the severing clouds in yonder East:
Night's candles are burnt out, and jocund day
Stands tiptoe on the misty mountain tops
(…)
Making it momentany as a sound,
Swift as a shadow, short as any dream;
Brief as the lightning in the collied night,
That, in a spleen, unfolds both heaven and earth,
And ere a man hath power to say 'Behold!'
The jaws of darkness do devour it up:
So quick bright things come to confusion.