In the Bible, Ezekiel has a dream or vision of a Latter-day temple to be built in Jerusalem. An angel of God gives Ezekiel a tour of this future temple where water runs out from the foundation to heal the land and the Dead Sea. Trees grow and produce fruit along the waterway. Ezekiel crosses the water several times under the direction of the angel, at first the water is ankle deep, then it is knee deep and then up to his hips, finally it is so deep that he must swim to cross. This symbolizes how understanding will increase as we attend the temple more frequently. You can read more about this remarkable prophecy in Ezekiel 47.