The word sara-bhrtam means paramahamsas. The hamsa, or swan, accepts milk from a mixture of milk and water and rejects the water. Similarly, the nature of persons who have taken to spiritual life and Krsna consciousness, understanding Krsna to be the life and soul of everyone, is that they cannot give up krsna-katha, or topics about Krsna, at any moment. Such paramahamsas always see Krsna within the core of the heart (santah sadaiva hrdayesu vilokayanti). Kama (desires), krodha (anger) and bhaya (fear) are always present in the material world, but in the spiritual, or transcendental, world one can use them for Krsna. Kamam krsna-karmarpane. The desire of the paramahamsas, therefore, is to act always for Krsna. Krodham bhakta-dvesi jane. They use anger against the nondevotees and transform bhaya, or fear, into fear of being deviated from Krsna consciousness. In this way, the life of a paramahamsa devotee is used entirely for Krsna, just as the life of a person attached to the material world is used simply for women and money. What is day for the materialistic person is night for the spiritualist. What is very sweet for the materialist—namely women and money—is regarded as poison by the spiritualist.