Meeting one on one allows for an intimacy of discussion that a small group would not. He has told me that he prefers this format and so do I; if others do the same it will spread his time with visitors all the more.
I told him that he is living his life more honestly than anyone I know. His existence is stripped down to a bare bones reality and there is no window dressing of distraction and false obligations to sap his energy. I know he lives in his mind more than he would like but there is something very pure about eliminating the fake things that pass for importance in our daily lives and shield us from reflecting on our mortality.
For him that is gone and his demeanor and expression reflect that. There is much serenity there even if you know that there must be horrible moments of dread for what may come.