"And Jacob went out." The Sages said: And weren't there several donkeys and several camels that went out with him from Be'er Sheva, and Scripture does not mention their departing?! And only with Jacob, as it is written, "and Jacob went out." From here we know that a Torah scholar who leaves a place, the people of that place remain orphaned. He went out of there praised, went out of there radiant, and went out of there honored. "And he set out for Haran." And did he set out immediately at that moment from when he left Be'er Sheva? No, rather this teaches that the land shortened itself for him.
When a Torah Scholar Leaves, a Town Goes Dark
Midrash Aggadah, Genesis 28:10