The essential quality of the sadhu is to have one-pointed devotion to Krishna. The one who is serving Krishna is serving all. The most elevated stage is to serve Krishna. If you pour water onto the roots, the whole plant will be nourished. If you give food to the stomach, the whole body will be nourished. If you serve Krishna, you serve all. This is the fundamental essential quality of a sadhu.

Will the aquatic animals living in the rivers, seas and oceans get Bhagavan? No.

There are many vegetarians like the goat etc. By simply becoming vegetarians, you cannot get Bhagavan. Without one-pointed devotion, nobody can get Bhagavan. We perform japa of Bhagavan and we get something else. A person who wants Bhagavan from the core of his heart, will immediately get Him. A person who has one-pointed devotion to the Supreme Lord is a sadhu. He does not worship any demigod. But he knows that by serving Krishna, he serves all. A chaste wife, who has love for her honest husband, will serve the servant for the satisfaction of her husband.

Similarly, sadhus have got respect for all but they respect in relation to Sri Krishna. They do not go and worship any demigods. All the demigods are satisfied with the suddha bhaktas. The demigods are congenial to all those who have devotion for Lord Hari. So we should have one-pointed devotion. Krishna has said: mam ekam saranam vraja.

Sadhus cannot live without hearing and speaking about Krishna, just as a fish cannot live without the water. Without hearing about Krishna's name, fame and pastimes and without engaging their senses in the service of Krishna, sadhus cannot live in this world. But some are doing this for business. They speak about Krishna for another motive. Bhagavan is omni-potent. If I take shelter of Bhagavan, will He not protect me? Everywhere there are mishaps, but when God protects you, nobody can do you any harm. Sadhus know that God will protect them. Therefore, they are calm and serene.