When film is not a document, it is dream. That is why Tarkovsky is the greatest of them all. He moves with such naturalness in the room of dreams. He doesn't explain. What should he explain anyhow? He is a spectator, capable of staging his visions in the most unwieldy but, in a way, the most willing of media. All my life I have hammered on the doors of the rooms in which he moves so naturally. Only a few times have I managed to creep inside. Most of my conscious efforts have ended in embarrassing failure - The Serpent's Egg, The Touch, Face to Face and so on.

Perhaps we are the same person. Perhaps we have no limits; perhaps we flow into each other, stream through each other, boundlessly and magnificently. You bear terrible thoughts; it is almost painful to be near you. At the same time it is enticing. Do you know why?

When we experience a film, we consciously prime ourselves for illusion. Putting aside will and intellect, we make way for it in our imagination. The sequence of pictures plays directly on our feelings.

Then I felt that every inflection of my voice, every word in my mouth, was a lie, a play whose sole purpose was to cover emptiness and boredom. There was only one way I could avoid a state of despair and a breakdown. To be silent. And to reach behind the silence for clarity or at least try to collect the resources that might still be available to me.

The film medium is some sort of magic. I think also it's a magic that every frame comes and stands still for a fraction of a second and then it darkens. A half part of the time when you see a picture you sit in complete darkness. Isn't that fascinating? That is magic.

Only someone who is well prepared has the opportunity to improvise.

My discovery of Tarkovsky's first film was like a miracle. Suddenly, I found myself standing at the door of a room the keys of which had, until then, never been given to me. It was a room I had always wanted to enter and where he was moving freely and fully at ease.