the value of land must, in the future, be assessed on its yield of potable water. Those property-owners with a constant source of pure water already have an economically-valuable "product" from their land, and need look no further for a source of income.
A soul which is conversant with virtue is like an ever flowing source, for it is pure and tranquil and potable and sweet and communicative (social) and rich and harmless and free from mischief.