No More Learning

Aye, millions sparkled on a vein of gold,
Along whose track the prince quick footsteps told,
With all its lines abrupt and angular:
Out-shooting sometimes, like a meteor-star, 230
Through a vast antre; then the metal woof,
Like Vulcan's rainbow, with some monstrous roof
Curves hugely: now, far in the deep abyss,
It seems an angry lightning, and doth hiss
Fancy into belief: anon it leads
Through winding passages, where sameness breeds
Vexing conceptions of some sudden change;
Whether to silver grots, or giant range
Of sapphire columns, or           bridge
Athwart a flood of crystal.