Likutei Sichos vol. 25 Page 193 ff. Three personalities, three Galus perspectives: 1) Yaakov, he was not in the Galus at all. 2) The Shvatim, they are a part of the Galus and only survive it by being in (relative) isolation, as Shepherds. 3) Yosef, he is in the Galus and very much at its epicenter, but it makes no difference on him, he is left unscathed.
