Think of this as
Understanding (Big U) appearing as understanding (little u)..
The little understanding arms with intellect to thrust and parry
Not knowing its encircling fence of confinement..
That is until...discovery of U/u..as
Freedom thrusts Anew...
"This is the difference between the intellectual understanding, in which these ideas are tossed around and argued about, and the Understanding going deeper; it goes to another level, where the ego, the sense of individual self, gets exploded, annihilated. No doubt that would be experienced as a bit disorienting, yes? The ego sense of self spends all its time trying to stay in control and that means trying to keep you away from these moments of disorientation when the bottom drops out and it doesn't know what to do."
~Perfect Brilliant Stillness.