 Bab Aziz, a very old blind dervish is on his way to a place unknown where a Sufi gathering is to take place. Guiding him across a sea of sand is his granddaughter Ishtar, a little girl full of go, who loves her grandpa but who is afraid they might never reach their destination, all the more as the meeting is organized only once every thirty years. But Bab Aziz is undeterred. He knows that if he "listens to the infinite silence of the desert with his heart" he will find the place. While making their way, they meet strange persons and Bab Aziz tells Ishtar strange tales...