Probably one of the best movies ever made in the world, though it is bit difficult to understand as you will have to be very alert while watching it.
Apart from a job to earn, human mind wants to be content, empty and be busy with Joyful activities with no returns in it . The activity itself was the return because it was joyful. This grows your wisdom, creativity, excellence and you become helpful to others too. The Wisdom is the highest pleasure and intoxicant which makes you drop everything else in life. However family and society conditions the human mind with discontentment and to search for happiness by achieving some goals and remain sad till then.
Where there is content, joyful and empty mind the Intelligence expresses itself by default.