hungry ghost concept from Chinese Buddhism where a certain kind of spirit eats and eats and never satisfies its torturous hunger pangs.
The documentary wasn't necessarily encouraging that we throw away the things we have or stop buying all together, it was recommending that we keep possession only of items we truly enjoy in our lives--materialistic goods that contribute to a happy, meaningful life.
The film ended with the takeaway of: "Love people. Use things. Not the other way around."
You can check out the website for the narrators Josh and Ryan (pictured above) at http://www.theminimalists.com and you can find the documentary on Netflix called Minimalism.