An enlightened being is sometimes given the title Paramahamsa. This refers to an ancient Hindu myth of when the world was young, the whole of the surface was covered with water. The mischievous Gods mixed milk and poison in the water and stirred it all together. Paramahamsa was the name meaning the Great White Swan.
This enormous Swan, is said to have had the ability to put its beak deep down into the water and draw out pure milk. It had the capacity to discriminate and draw in only the milk, which is the reason it remained white, and reject the poison water. Not only that, a Paramahamsa, an enlightened being, has the capacity of changing water into wine, poison into milk, Yin into Yang, black into white.