Of Immensity Poem by Giordano Bruno

From Frith's 'Life of Giordano Bruno'

'Tis thou, O Spirit, dost within my soul
This weakly thought with thine own life amend;
Rejoicing, dost thy rapid pinions lend
Me, and dost wing me to that lofty goal
Where secret portals ope and fetters break,
And thou dost grant me, by thy grace complete,
Fortune to spurn, and death; O high retreat,
Which few attain, and fewer yet forsake!
Girdled with gates of brass in every part,
Prisoned and bound in vain, 'tis mine to rise
Through sparkling fields of air to pierce the skies,
Sped and accoutred by no doubting heart,
Till, raised on clouds of contemplation vast,
Light, leader, law, Creator, I attain at last.