Man always craves for bliss. The first requisite for achieving Supreme Bliss is a pure heart. One’s heart, which should be white and pure like milk, is today filled with bad thoughts and feelings. Spiritual exercises begin with the purification of the heart and then transforming it into an ocean of milk. When the heart is filled with satwic (pure) qualities, it becomes like a milky ocean. Only then does it become a worthy dwelling for the Lord (Vishnu) whose abode is described as Ksheera Sagara (the Ocean of Milk). But by yielding to tamasic and rajasic(dull and aggressive) impulses, people today have turned their heart into ksharasagaram, a salty ocean. In the salty ocean, we have sharks and whales. Likewise, in the heart of the evil-minded, bad qualities like lust, anger, greed and envy flourish. It is a folly to give room to such evil forces. They must be removed totally so that the Lord may find His rightful place in a heart that is pure and holy.