A person drank some water.
The cinematographer kept filming. The scientist thought he was specifically drinking for the biological need and pathological quest for any H2O chemical properties content, which stemmed from the medical condition of dehydration, a cause of cell death. The anthropologist thought he was mimicking a behavioural pattern inherited from an ancestral culture. The psychologist thought he was musing upon his mother, and her breasts, created by a thirst that was possibly conditioned by the sound of running water and subsequently aggravated the quenching of a thirst which symbolically could refer to the filling of an apparent inner void and emptiness.
The philosopher pondered, while the religious man believed he was drinking Life. Then the philosopher had a eureka moment, with life-changing lucidity, when he himself wanted to drink. He contemplated for a moment, then gulped, and came to the conclusion that
the man was just thirsty.