
Synopsis: While returning to Deep Space Nine with the Bajoran Orb of Time, the Defiant is thrown back in time to the 23rd century.
This episode can be seen as an illustration of how a complex can allow bits of material from the Eros-driven irrational unconscious to come to the attention of the Logos-driven rational conscious ego.
In “Trials and Tribble-ations” the Defiant is returning to Deep Space Nine with the Bajoran Orb of Time, when they pick up a passenger, Mr. Barry Waddle, who will be returning to the station with them. But Waddle is really Arne Darvin, who 105 years ago was the Klingon altered to look human who poisoned the grain that killed the tribbles on Deep Space Station K-7 in the Star Trek: The Original Series episode “The Trouble with Tribbles.” Darvin uses the orb to go back in time, believing that if he changes the timeline he can become a hero of the Klingon Empire. In order to stop him from altering the timeline the crew goes back to that same point in time. They are successful, but Captain Benjamin Sisko has to answer to the Department of Temporal Investigations.
In this episode the Bajoran Orb of Time can be seen as analogous to a complex, because it allows for travel to another place in time outside of the current existence. Sisko and the crew are allowed to visit an alternative reality, an other-world if you will, to work out an issue. This is similar to the opportunity we all have every time a complex is activated in our psyche, when the conscious ego has the chance to incorporate bits of material previously unknown to itself into itself to become stronger and more whole.