Ripples, estuaries, eddies dribble away from the main riverine flowing in rivers , oceans, streams.
These bring life-giving activities bring hydration to depressed regions.
As with water so with natural wealth. Ripples, estuaries, eddies must be used to conscientiously divert hydration back into depressed regions, by deft husbandry of their natural resources. Or be constrained to seek from others what they have earlier given away by indiscriminate spending or frivolous consumption.