Film director Philip Groening has made Into Great Silence, a film about a Carthusian convent where the monks are living in complete silence:
Only in complete silence, one starts to hear. Only when language resigns, one starts to see.
About 160 minutes of next to total silence. How can that work in a cinema? How silent can it be? Will sound suddenly burst out, without warning? How dark can it be amid the unlit masses of monks in their sanctuary? To what extent is a shadow recognisable as a human being?