I heard a story (I think it was recorded by Reb Noson) about either a Shabbes of Yomtov when Rabbi Nachman of Breslov was sick, and many students came to visit him. He was too weak to deliver an address, but towards the end of the yomtov, partly due to his distress, he summons an enormous amount of energy and delivers a very long and impassioned speech about the holiness of Eretz Yisrael and how we are able to imbue it into the land in which we reside.
Does anybody recognise the story or have a source for it?