The speaker asks "What the hand, dare seize the fire?" (8). This is an allusion to when Prometheus stole fire from Zeus and gave it to mortals. The gift of fire allowed humans to be productive and inventive. By placing this idea in The Tyger, Blake suggests that it is this darker side of humans which allowed them to progress so much in history. By looking even closer at Prometheus, many other insights can be given into Blake's reasoning behind this poem. Prometheus was punished by Zeus for giving humans fire. Zeus had Hephaestus, who is mentioned later in The Tyger, shackle Prometheus to the side of a crag. There he was doomed to spend eternity while being attacked by an eagle every day. Prometheus was fated to be punished by his own kind, the other gods. This is obviously also true to humans. Because of the evil that lurks in the hearts of men, we have always, and will probably continue to torture and abuse other humans.
Zeus was still angry with Prometheus, so he decided to undo the good that