Boredom, confusion, intrigue, revelation. The film is really easy to analyze. And one possible approach is, of course, an allusion to life.
The first minutes (we are talking about the full, forty-five-minute version) we see the room, almost the whole. And despite the fact that there are windows on the wall opposite us, we focus on what is happening here, inside; walls, furniture, people, important and not so, new furniture, new people.
Gradually, the space narrows - and now we seem to be beginning to pay more and more attention to what is happening there - outside the window (fortunately, the windows are as many as four, and they occupy most of the wall - and the frame); but the center of attention, nevertheless, remain people and objects of the "inner" world - and those and others have become fewer - only the most important for us remain.
At some point (thanks to an even more narrowed frame), we finally begin to observe the “big”, “external” life more and more – now it is closer, more noticeable, and, not least, more interesting. We feel that it is there that real movement is taking place – and therefore real life; for all this time we know – we see and hear – that it is far from desert – on the contrary, the sounds and movement do not stop for a second, no matter how much the characters of the “inner” life try to close themselves from this world – literally closing the windows, or to be distracted by other sounds and movements, including radio (the sounds of which, however, also come from the external world).
But the minute we become aware of our desire to move and be there, the picture of the world narrows again — and we suddenly realize with horror that all this time the true center for us was not the “outer” life, or even the huge windows into it, but the wall between them; and life “outside” begins to slip away, never becoming part of ours.
That's how we grow up. And so we age, lose strength and maybe motivation.
Meanwhile, the center of our attention is a picture on the wall depicting waves at sea. This is the world of memories, that which has been and cannot be returned, or the world of unfulfilled dreams, that which never was and never will be. Both are directed precisely at the “outer” life: the “sea within” is as much an illusion as the fantasy that with every moment we are getting closer to the real life. But this world of illusions, in which it is so sweet and calm to be, as if forgetting the world outside, forgetting even the world inside; now the only reality is the world of infinitely receding and infinitely approaching waves.
The whole film is accompanied by gradually rising sounds; thus, the length of the sound wave becomes shorter – as do those moments in time that you perceive as you mature. At a certain point, the sound seems to reach a peak — such a height that it begins to seem, everything is accelerated to the limit, and then — it goes to ultrasound — the very moment when the frame of the picture becomes the boundaries of the screen.