In the movie, the robot reflects some features that we have. He needs water. He was dazzled by the water and exploited it as much as possible without thinking the consequences; dead plants behind him are the symbol of environmental destruction by human. We often succumb to temptation right in front of us even if we know it will have an unpleasant effect on us in the future. The robot implies this feature of human and this temptation is the Mirage. He also implies the possessiveness( not liking to share things with others) of human. He stopped the tap supplied by the tree on the roof so that he could monopolize it.
As he killed the fruit hanging under the tree, he heard something criticizing voice from the tree. Having heard the voice, he regretted what he did and saved the fish coming out of the fruit. Finally, the robot and the fish swimming happily in the water. This means that environmental problem can be solved, and human and nature can live together if we reconsider what we do to the environment and take actions for it.
