In the clip, he expels wisdom on directing:
"the advice I can give to beginners is not to separate their work, their movie, their film, from the life they live. Not to make a difference between the movie and their own life.”
He did not consider filmmaking work, nor the did he find working a camera and cutting film difficult. Total immersion is the challenge. Tarkovsky's work is recognized as being both deeply personal and without comparison.
He goes on:
“Cinema is a very difficult and serious art. It requires sacrificing of yourself. You should belong to it, it shouldn’t belong to you. Cinema uses your life, not vice versa.”
While some filmmakers heed this advice, many do not. It results in a homogenization of what we consider "indie" film.