Desire We Past Illusions to Recal

Desire we past illusions to recal?
To reinstate wild Fancy, would we hide
Truth whose thick veil Science has drawn aside?
No,--let this Age, high as she may, instal
In her esteem the thirst that wrought man's fall,
The universe is infinitely wide;
And conquering Reason, if self-glorified,
Can nowhere move uncrossed by some new wall
Or gulf of mystery, which thou alone,
Imaginative Faith! canst overleap,
In progress toward the fount of Love,--the throne
Of Power whose ministers the records keep
Of periods fixed, and laws established, less
Flesh to exalt than prove its nothingness.