Book of Urizen — Chapter IV

1. Los, smitten with astonishment,
Frighten'd at the hurtling bones

2. And at the surging, sulphureous,
Perturbèd, immortal, mad raging

3. In whirlwinds, and pitch, and nitre
Round the furious limbs of Los.

4. And Los formèd nets and gins,
And threw the nets round about.

5. He watch'd in shudd'ring fear
The dark changes, and bound every change
With rivets of iron and brass.

6. And these were the changes of Urizen:--