Why are anons still wondering what keystone is?

It's the POTUS and you. Yes you. You were chosen for a specific purpose to unlock the map and educate the masses.

KEY spreads the TRUTH. This is your job! The MAP provides the KEY.

STONE - the force / strength capable of yielding power to act on info. This is Presidential power!!

POTUS is the STONE.

POTUS cannot act w/ power until you spread the TRUTH.

As you unlock the map and spread the truth, then POTUS can take action!