Glad I finally got around to reading this...

"What is this film about? It's about a man. No, not the particular man whose voice we hear from behind the screen...' It's a film about you, your father, your grandfather, someone who will live after you and who is still "you". About a man who lives on the earth, is a part of the earth and the earth is a part of him, about the fact that a man is unanswerable for his life both to the past and to the future. You have to watch this film simply, and listen to the music of Bach and the poems of Arseniy Tarkovsky; watch it as one watches the stars, or the sea, as one admires a landscape. There is no mathematical logic here, for it cannot explain what man is or what is the meaning of his life."