This film was a kind which I've never seen in my life. I thought it was....weird. I didn't like it very much.
Mirage- an optical illusion caused by atmospheric conditions.
To explain what I think each simbol stands for:
Robot: human→ emotional creature
fish: life→ for our weakness
water: food→ power for lives
The face of the robot was scary..
and his body design..lol
I'm not sure, but the message might be something about environment again.
Saying that we cannot live without water and that's why we have to use it with a great gratitude; and also save it!!