This episode marks the end of Kes and Neelix's relationship.
Tieran's successful quest for immortality mirrors the historical unsuccessful quest of the first Emperor of China, Qin Shi Huang, who drank mercury.
The rifles that the guards were reuses of Jem'Hadar rifles from Star Trek: Deep Space Nine (1993). Kes carries a pistol prop from the weapons display in James T. Kirk's cabin in Star Trek: Generations (1994).
The damaged Ilari spacecraft was an often reused studio model, most recognizable for appearing as the spacecraft that attempted to steal supplies from Surplus Depot Z15 at Qualor II in Unification I (1991).
This episode introduces a holographic program of the Paxau Resort that continues to recur through the season, subsequently appearing in The Q and the Grey (1996), Macrocosm (1996), Alter Ego (1997), Blood Fever (1997), Darkling (1997), Before and After (1997) and Displaced (1997).