The Doctor: I'm afraid you'll have to. You have a severe imbalance in your brain chemistry. If it gets much worse, it could become life threatening. Now I need to know how Vulcans deal with this condition.
VORIK: We go home. Every seven years of our adult life, Vulcans experience an instinctual, irresistible urge to return to the homeworld and take a mate.
The Doctor: So then, logically, you try to find a mate here. I assume that explains your behavior toward Lieutenant Torres.
EMH: With Lt. Torres, upset is a relative term. In any case, we're going to have to try to find another way to treat your condition. Let's start with a microcellular scan.
Vorik: There are certain meditative techniques. I will be fine if simply left alone. Please, allow me to return to my quarters. Confine me there, if you wish, but allow me to resolve my situation privately.
Doc: Until I have a better idea of how to treat your condition, I'll release you to your quarters. You'll be under confinement and wearing a cortical monitor at all times.
Some time later, the Doctor is consulting with Tuvok. DOC: I'm concerned about Ensign Vorik's cortical readings. One returns to normal levels, then another one spikes. It's chaotic. As if the brain's regulatory system had simply shut down. I can't tell if he's making any progress with these meditations. I thought maybe you could suggest other possible treatments.
TUVOK: For both of those reasons there is little help that I can offer. It is inappropriate for me to involve myself in Ensign Vorik's personal situation.
DOC: For such an intellectually enlightened race, Vulcans have a remarkably Victorian attitude about sex.
DOC: Then here's a Vulcan one. I fail to see the logic in perpetuating ignorance about a basic biological function.
TUVOK: There is nothing logical about the Pon Farr. It is a time when instinct and emotion dominate over reason. It cannot be analyzed by the rational mind, nor cured by conventional medicine. Anyone who has experienced it understands that it must simply be followed to its natural resolution.