Additionally

Thought about this today (because of this: John vii, 37-39):

Just as the altar on which the water was poured out represents a mountain with rivers flowing from it, so Christ's gift of "rivers of living water" flowing out of the hearts of believers indicates that they become these river-mountains.

That is to say, as river-mountain imagery is Edenic-temple imagery, Jesus turns believers into temples of the Living God.