My sister-in-law in the Philippines has a beach house where water had to be fetched from the river every day. Her husband had drilled in a number of places but, wherever he found water, the supply dried up rapidly.
Then he dreamed three times that his dead grandmother pointed out a spot near the house and told him, ‘Dig here, there is treasure below’. He dug where she indicated, hoping to find gold, but found a reliable supply of fresh water. The moral of this story is to listen to your elders, especially if they are dead!