satam ayam sara-bhrtam nisargo
prati-ksanam navya-vad acyutasya yat
striya vitanam iva sadhu varta
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Paramahamsas, devotees who have accepted the essence of life, are attached to Krsna in the core of their hearts, and He is the aim of their lives. It is their nature to talk only of Krsna at every moment, as if such topics were newer and newer. They are attached to such topics, just as materialists are attached to topics of women and sex.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
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.
sandarsanam visayinam atha yositam ca
ha hanta hanta visa-bhaksanato ’py asadhu
This is the instruction of Caitanya Mahaprabhu. For the paramahamsa, Krsna is everything, but for the materialist, women and money are everything.