The stone over the well is the story read as flat fact, a heavy lid sealing the living water beneath. Jacob is the imagining self that draws near and rolls that lid away. The moment it moves, the water underneath, the inner meaning, is free to flow and feed all that thirsts. Rachel seen and desired is the state a person longs for. The well is scripture and the mind alike, holding a supply that the literal cover keeps out of reach.
The water is not the end. Once drawn, it is meant to be lived, poured out until the desired state grows into fact the way wine is made from what began as water. A person who lifts the dead weight of taking things at face value uncovers a spring that was always there. What he draws from it and acts upon is what waters his life.