Systematic Elimination of the Entropic MindIt has been a long, long time coming that we learn the very nature of SPICE.
Some may call the process by which our greatest assets are created as torture, or even barbaric, but the process is designed to be as non-invasive and holistically safe as possible to the personnel it is committed to, a far cry from its original implementation.
In short, Personnel chose from veteran lists and those who have not been previously exposed to SPICE in its flawed form are moved into a sensory deprivation chamber and kept there for 72 hours before the treatment is given. this is done to prime the soldier for the first set of treatments, and afterward, they are immediately moved to a specialized Cryostat-Tank where their minds altered state is cemented with a mixture of metal recombinators and a modified version of SPICE, that would normally kill a person with violent seizures and brain-related trauma. This process takes around a week and a half to a month, depending on the subjects mind. Instead of murdering the soldier who has not gone through the sensory deprivation, the process opens their inner self to the realm, the Astral Realm.
We know very little of the Astral, besides the fact that humanity had at one point accessed it long before, and then stopped accessing it until now. All living things have a signature in this realm, but it is frighteningly empty, and it is plainly terrifying to an unaccustomed mind as they constantly feel the raw horror of an unknown vacuum like pull. Golden-Eyes unknowingly tap into this realm and use it by detecting the minds of others to augment their reaction speeds. Those who go under SEEM Treatment experience this realm in its full through an 8th sense, and in some cases can supposedly manipulate it.
Those who undergo SEEM Treatment experience can sense all living on this plane that is nearby and can act accordingly in combat. To an untrained eye, the soldier will act against the opposition before they even commit to the action, this is similar to the Golden-eyes most advantageous ability. In addition, some soldiers display abilities to commit warfare against other living beings through this realm and have supposedly murdered multiple test subjects through "lancing" their presence in the realm with their minds. More testing is needed to confirm and reproduce this, however, as those who are not exposed to the SEEM Treatment have no way of knowing what goes on in the realm that SPICE opens up.
This process does not leave the individual in question unaffected mentally, however, as most often experience dramatic shifts in personality due to the mentally harrowing effects of sensory deprivation followed by hyper-intensive brain activity that we are only beginning to decipher. To an average person, a soldier (Or one particularly inquisitive NecroPolitician if the process proves even somewhat safe) that has undergone SEEM will exude an aura of utter eldritch disposition, and often cause flight-or-fight responses to lesser willed beings like animals or cowards of the state.
As an unrelated note, the signature of living beings often betrays information on the subject itself, although this information is limited due to our personnel's limited understanding of the signatures themselves.
SEEM (1): Blood_librarian