Well, it's a tree
From deep within the Earth it sucks out the water. It is nourished and it grows and grows into a complex network of simplistic twigs breaking free into open sky. What it soaks from the atmosphere, it pushes back into the soil; into the water; making it sweeter. Well, it's a tree.
Behind the Sri Rama temple at Thirunindravur. The priests there drink water directly from this well.