Reb Nachman was once traveling with his Hasidim by carriage, and as it grew dark they came to an inn, where they spent the night. During the night Reb Nachman began to cry out loudly in his sleep, waking up everyone in the inn, all of whom came running to see what had happened.
When he awoke, the first thing Reb Nachman did was to take out a book he had brought with him. Then he closed his eyes and opened the book and pointed to a passage. And there it was written "Cutting down a tree before its time is like killing a soul."
Then Reb Nachman asked the innkeeper if the walls of that inn had been built out of saplings cut down before their time. The innkeeper admitted that this was true, but how did the rabbi know?
And Reb Nachman said: "All night I dreamed I was surrounded by the bodies of those who had been murdered. I was very frightened. Now I know that it was the souls of the trees that cried out to me."