When words are embryos

I have just seen 'Okuribito' a Japanese film, and I know that it is the most beautiful film that I have ever seen.
Part of why it so touched me is 'words not spoken'. Often words in the mind cannot leave. They are not properly formed, embryos, are too complex, need to be stored until they measure the intensity of the emotion to be conveyed.
In this film, stones become the symbol, the transporter of the words unspoken between father and son.
I adore stones and collect them as memories or for their shape or beauty. For me, this film of few words spoke volumes.