5 At last breaks forth with furious unrest,

At > [And at] unrest > turmoil

6 And strives to mount to his native seat;

native seat > rightful position (of the element Fire, above Earth, Air, and Water)

7 All that did erst it hinder and molest,

erst > formerly

8 It now devours with flames and scorching heat, 9 And carries into smoke with rage and horror great.

211.33

So mightily the Briton Prince him rouzd
2 Out of his hold, and broke his caitiue bands,
And as a Beare whom angry curres haue touzd,
4 Hauing off-shakt them, and escapt their hands,
Becomes more fell, and all that him withstands
6 Treads downe and ouerthrowes. Now had the Carle
Alighted from his Tigre, and his hands
8 Discharged of his bow and deadly quar'le,
To seize vpon his foe flat lying on the marle.

1 So mightily the Briton prince himself roused