Thirst is a very great desire. The more thirsty you are, the greater your pleasure in drinking water.
The same is true of your holy thirst for God; this is the delight of the World to Come. - Rebbe Nachman, Sichot HaRan 259Rav Moshe Weinberger once related a story that happened when he and his father went on a fishing trip. As they were sitting out in the middle of the lake, it began to rain. His father showed him that the fish swam to the surface, and jumped to catch the raindrops in their mouth.
He explained that indeed, these fish are surrounded by water all the time. But when it comes down straight from the Source, there is nothing that tastes better.