Many thanks to my wife, Cimmorene, for pointing this detail out to me.
“What are you doing?”
In Dreams and a Lack of Prozium: Supernatural Aid, a dream jars John Preston from his usual routine. This is the question his son, Robbie (Matthew Harbour), asks him after the vial of Prozium smashes on the floor. Preston is silent, almost in a daze.
It should be noted that Robbie was markedly shown in Preston’s dream, looking on as Viviana was handcuffed and taken away.
“I said, what are you doing?”
When Preston explains that the incident was an accident, Robbie instructs him to go by Equilibrium (one of the Prozium centers) and log the loss. It is hinted by now that Robbie is training to be a Tetragrammaton Cleric (especially as he is shown in a much earlier scene amongst the masses). It is not clear, however, how he is a guardian to the Threshold, but this will be explained later.