Redigging The Well
Each person only receives in accordance with his yearning, his desire and effort, i.e. how much he pushes and digs with the words of his mouth and with his heart to find the water within the holy wells - the wells of fresh, living water that were dug in the days of Avraham and which the Philistines stopped up and filled in with dirt. Afterwards Yitzchok Avinu came back and redug them. He had many fights and arguments over them, because those who opposed him, then called the Philistines, quarreled with him a great deal. He finally dug and found the well of fresh, living water and named it Rechovot. Yet these wells are still stopped up, and since that time the tzaddikim and prophets of every generation have struggled enormously to dig them out and reveal them.
(Reb Nosson of Breslov)