If you say that someone is playing with fire, you mean that they are doing something dangerous that may result in great harm for them and cause many problems.
When fire was the exclusive property of the gods, it symbolized the divine power to make the world do what you wanted it to do. When you think about it, that's pretty major. So Prometheus decided to make man stand upright as the gods did and to give them fire. He was attempting to manipulate something very dangerous, the gods. it was like he was "playing with fire"
So reinventing something is to make it the same but make it your own like frozen was based off the snow queen they used the same basic story and reinvented it
Grendel's mother senses that a human being has penetrated her lair. She catches him, but his body is protected by his chain-mail armor, which she can't tear.
