I have seen Andrei Rublev a couple of times and several other Trakovsky films.  I also found Andrei Rublev to be a bit unclear as what the point of it was.  In my mind Stalker is Tarkovsky's masterpeice.  Although I know Andrei Rublev is supposed to be this wonderful epic, I just failed to see what was so profound about it.  It was almost as if Tarkovsky was trying to make a Gesamtkunstwerk (Total work of Art)yet tried to hard and made a movie with a bit too much going on;if he wanted to send a claer message that message got watered down in all the details of the story.