I believe that “The Big Lebowski” is making a point about the veterans of
The Dude and Walter are stuck in a time frame that is foreign to them. They do not communicate well with the current society and tend to keep to themselves. When the rug is taken, the Dude is taken along with the rug, out of his hiding place and into a world that is so bright it is almost blinding. He is forced to leave his element on a bizarre journey to find the coveted oriental piece. The problems occur when he runs into characters that seem outside of his time period and more modern. For example, towards the end of one of his visits with Maude Lebowski, Maude (and the other guy in the room) pick up the phone and begin to talk in another language. As the talking continues, the Dude seems more and more out of place, until finally, the two people break out into laughter and the Dude is left watching the bizarre display. The Dude and Walter need something, anything, to keep them back in their own element. This is where bowling and white Russians come into the story. Whenever the Dude enters a foreign place, he immediately goes for the alcohol (2 ounces of vodka, 1 ounce of coffee liqueur, and some cream to be precise) to keep his cool. The same is true when Walter is with the Dude. In order to keep his sanity, Walter needs to be bowling. There are certain times of chaos when Walter leaves the bowling alley. This is seen in several places. First, Walter goes off in the coffee shop when the waitress tells him to keep his voice down. Second, when the two go to drop off the briefcase, Walter hijacks the plan and instead drops off a suitcase without the money. And the last example of a shift in reality happens when Walter and the Dude fight the nihilists. They cannot fight them in the bowling alley, because that is Walter and the Dude’s center of control. However, the moment they leave the alley, they meet the nihilists and all hell breaks lose.
So what does this have to do with