The train passes the station, the flashing signals and enters the tunnel. In the tunnel, we just see the darkness and flashing lights, until we pass it.
The figure is sitting on the roof of the train in the wind and not perceiving anything. A hand emerges from the roof opening, grabs the figure's arm and pulls it. The main hero falls down.
We meet the conductor and he shows him cabin in the distance of the wagon, where they need to go.
They reach an agressive crowd of people who want to get off. Everyone aggressively follows the main hero. Fortunately, the figure reaches the control cabin in time. He looks around when he sees the control panel being operated by someone, but no one really sits there. He puts on his cap, the autopilot turns off. The train is back under control and the figure's eyes glow.
The train stops. Crowds come and go, the conductor blows his whistle and the train starts to move again. We see an approaching flashing signals, enter the tunnel,..
The whole story is based on my own subjective point of view with experiences with derealization/depersonalization, a psychological issue in the field of dissociation disorders, which are characterized by various ways of connecting a person with his consciousness, body, memories, and thoughts.
Derealization is characterized by man separated from ordinary life, you feel as if everything around you is not real and made up. Depersonalization is in turn characterized by detachment from oneself. You do not believe that you exist, you are a bit like a narrator, you no longer interfere in life. Althought it may seem very bizarre or Kafkaesque, such disorders really reside in people. In psychology, it appears to be somewhat neglected topic, despite the fact that 1.5% of people from the total world population go through these disorders. In conclusion, I do not want to take this topic as something dramatic but only to metaphorically point out the fact that these things exist.