The mage allows a Sleeper to possess Mage Sight. For the Duration of the spell, the Sleeper sees things see that she did not believe possible before. During this period, her witnessing the Mysteries does not invoke Disbelief, but she still adversely influences a Paradox as a normal Sleeper witness.
Silver Ladder Rote: Fitful Sleep
One of the greatest powers is that of controlling knowledge. Ladder mages use this rote to bestow some small glimpse of the truth upon those who would otherwise remain forever blind. Sometimes they do so to win the loyalty of Sleepers, and sometimes their fear, but given the risks inherent to such an act, they rarely do so without good reason.