Prabhupāda: Quarrel, they, those who are not in love of Godhead, they must quarrel. That is the . . . because they are cats and dogs. You cannot expect any peaceful condition between cats and dogs. They will fight. So whatever they may be, so long they are fighting, that means they are not on the perfectional stage. Where is the fighting? If you love God, then you love everyone. That is the sign. Samaḥ sarveṣu bhūteṣu mad-bhaktiṁ labhate parām (BG 18.54). After attaining the stage of equality, then you can enter into the realm of loving God. Before that, you have to pass.
Just like before entering law college you have to become graduate, similarly, before entering the realm of devotional service you have to realize that all living entities are on the same platform. That is realization. You cannot make any distinction that, "This is lower," "This is higher." No. Paṇḍitāḥ sama-darśinaḥ (BG 5.18). When a person is fully learned, he does not make any distinction that, "He is human being, he is cow, he is dog, he is . . ." He sees that he is spirit soul covered in different dress. That's all. That is his vision, universal equality vision.
You cannot say that dog has no life, the cow has no life. How can you say that there is no life? That is lack of your knowledge. What is the symptom of life? You will find the symptom of life is there in human being, in ant also. How you can say that small creatures, lower animals, have no life? That is lack of your knowledge. Even trees, plants, they have got life.
So perfect knowledge required. So love of Godhead on the basis of perfect knowledge is real love of God. Otherwise it is fanaticism. So the fanatics, they may fight. That is not love of Godhead.
(pause) Of course, it is very difficult to come to that stage, but one should try. That is Kṛṣṇa consciousness. We are all student. We are trying. But there are degrees also. Just like in a educational institution there is tenth class, eighth class, fifth class, sixth class. And with the yoga, it is just like a staircase or a lift.
So there are different stages of perfection. The highest perfection is who is always thinking of Kṛṣṇa. That is. Yoginām api sarveṣāṁ mad-gatenāntarātmanā śraddhāvān bhajate (BG 6.47). The highest perfectional is Kṛṣṇa, thinking always Kṛṣṇa and Rādhārāṇī. That is the highest perfectional stage. She has no other business: simply thinking of Kṛṣṇa.
Viṣṇujana: While we are chanting our rounds, or while we are chanting out loud in the kīrtana, is it all right to be engaging our mind in thinking?
Prabhupāda: Is it not?