Which aspect of the travel narrative genre is reflected best in the passage above?

Assuming that you're talking about the Gulliver tale, the passage  that tell on how Gulliver managed to go in an adventure to several remote islands reflected the Voyage aspect of the travel genres, an activities to visit another place that hasn't been explored. Hope this helped

The main themes of the play are: fate and free will with the inevitability of oracular predictions is a theme that often occurs in greek tragedies the conflict between the individual and the state similar to that in sophocles’ “antigone” and   people’s willingness to ignore painful truths both oedipus and jocasta clutch at unlikely details in order to avoiding facing up to the inceasingly apparent truth and sight and blindness the irony that the blind seer tiresius can actually “see” more clearly than the supposedly clear-eyed oedipus, who is in reality blind to the truth about his origins and his inadvertent crimes.