In this lesson The Reservoir Of The Waters Of Life, the bodies of water are both said to be CRYSTAL. Both are associated with the throne. They must be the same water. In one case the water is barred up in heaven and still like glass. The other, it flows outward from Heaven. In this change of scenery, the Lamb is involved and makes the entire difference! A "crystal sea" that is still and serene like glass in chapter 4, sitting before the throne, like a reservoir. A rushing "Crystal River" flowing from the throne, unlocked and unbarred from mankind, as it were. The bodies of water are both said to be CRYSTAL.