How we cite our quotes: All quotations are from Star Trek: The Motion Picture.
Quote #1
FEMALE VULCAN: Our ancestors cast out their animal passions here on these sands. Our race was saved by the attainment of Kolinahr.
The most important aspect of Vulcan culture is that they were once a passionate and violent race, but decided to actively shed their emotions in favor of "pure logic." In order to reach this state, every Vulcan must go through an emotion-destroying ritual known as "Kolinahr."
Quote #2
FEMALE VULCAN: The consciousness calling to you from space, it touches your human blood. You have not achieved Kolinahr.
Here's a big thing to note about Spock: he's half-Vulcan and half-human. This creates a great deal of inner tension between his logical Vulcan side and emotional human side, which is a concept explored in great detail throughout the film.
Quote #3
ILIA: V'Ger and the Creator will become one.
SPOCK: And who is the Creator?
ILIA: The Creator is that which created V'Ger.
KIRK: Who is V'Ger?
ILIA: V'Ger is that which seeks the Creator.
This is the silliest variation of the "Who's on First" routine we've ever seen. Jokes aside, it's clear that V'Ger—our alien cloud extraordinaire—is on some sort of religious pilgrimage to reunite with its Creator. But what will happen when that meeting occurs? Only time will tell.