Whoever can control the Sage's Lock can then control the stereo array of the Sage's Space, manipulating the Sage's Space as if pulling the strings of a marionette. At that point, whether to fold up the Sage Space and transform it into Sage Particles to take away, or to remodel this space, is entirely up to the will of the controller.
Noland Lee's original plan did not involve delving deep into the Demon Rat Nest.
He had manipulated Undead Gustav to enter the Underground Layer 10 of Sector 8, to open the doors of several other corridors, allowing the aberrations to enter Sector 8, lured by the scent of living humans.