A Working is the operational process that is undertaken to perform the The Work.
The Crucible is the vessel in which the working occurs, into which the product of The Work is deposited, and from where it can be recovered.
The Crucible is metaphysical and allegorical.
Alchemy does not occur in a darkened room full of green smoke and furnaces (most of the time).
Alchemy takes place in your head.
The Crucible is you.
The Great Work refers to the purpose of the alchemist and the meaning of his present life and his existence.
The Great Work of this Generation refers to the meaning and purpose set for the lives of everyone alive today on Earth for the whole of their lives.
In the past it has been : steam engines; sailing vessels, global fascism, world socialism, telephones, maps and exploration, global thermonuclear war , pony express, the Warfare of Ghengis Khan, the myth of Global Warming....
So - what's it going to be, and how are you going to help?