You reach knowing by matching what is known and what is shown in all zones. You absolutely cannot reach sufficient knowing via the human construct alone.
To do so is to attempt to breed a seed-producing seed without the seed. To do so is to attempt to create a tree out of a branch without Earth, Air, Water, Fire assistance.
Same goes for the breed of thought that has no appreciation for the relationship of itself to the all else of growing ways of knowing.
This is why One Knower had to become Many Knowers.
This is why One Grower had to become Many Growers.
This is why Many ways must unify themselves back into One in order to know whether it is reality or illusion your thinking grows.