The word Meta as it is used in the Lionsberg System is meant to point to the eternal, universal, ultimate, self-referential, highest order, most transcendent conception of an idea.
Therefore the Meta Quest is the highest universal overarching and uniting "Quest of quests", that by definition contains within itself and orders all other possible quests.
The idea of the Meta Quest is critical because it provides a framework in which to stack up and align our individual Quests with the Meta Quest that is big enough to unite us All.
Because the word Meta in the System points towards the Absolute, it is intentionally not concretized. This is to avoid the Pattern of Failure that occurs when we Concretize The Absolute.
Success in the Meta Quest is measured in terms of progress towards the Meta Goal.