"Dreams and visions were important to Julian, and he experienced them at decisive moments of his life. He was more rather than less typical of ancient men in his predisposition to such psychic phenomena and in his credulity. While in Gaul and still at the rank of Caesar, Julian wrote in a letter that he had had a prophetic dream in which he saw a very tall tree bending over to the ground from its own weight and height, and beside the small shoot in flower growing out of the roots of the great tree. He feared for the safety of the young plant and when he drew nearer he saw the great tree falling to the ground. The small tree was still standing; its roots remained in the earth, and an unknown person advised the dreamer not to fear for its safety. "God knows what this means," wrote Julian."
January 1, 1970
https://en.wikiquote.org/wiki/Julian_(emperor)