So why we are preaching? What is the necessity of preaching? The necessity is to make them happy. If we follow the Caitanya Mahāprabhu's instruction, then our life will be successful and we will be happy. And the process is very simple: chanting Hare Kṛṣṇa. There is no very hard and fast rule for chanting Hare Kṛṣṇa mantra. In any position, in any place, in any circumstance, you can very easily chant this Hare Kṛṣṇa mahā-mantra. Even small children, they also take part, chant Hare Kṛṣṇa and dance with the elderly father and mother. So there is very good potency if we simply chant this Hare Kṛṣṇa mantra. The potency is, the first benefit is, that our dirty heart becomes cleansed. We have accumulated many dirty things within the heart on account of bad association. The first dirty thing is to accept this body as self. This conception, bodily concept of life, is existing amongst the animals. It is existing amongst the animals that "I am this body." So actually, I am not this body, I am spirit soul. I am embodied within this body, material body. This is the fact. If we simply become aware of this fact that "I am not this body, I am spirit soul. I am living within this body," then immediately we become liberated from this material world simply by this understanding. And this can be understood by any sane man without any study of philosophy, simply by common sense. The simple philosophy is that the child is now possessing a small body, then he will possess a big body, then another big body. In this way the child is there, the body is changing, that's a fact. And the body changes so long the soul is there. Therefore, the conclusion should be the body and the soul, they are different. It is very simple truth, but because we have accumulated so much garbage dirty things within our heart, we cannot understand even this simple thing. We are advancing education in civilization and so many big, big words, but we are so dull that we cannot understand this simple thing. And to understand this simple thing is the beginning of life. Otherwise, without understanding this simple thing, to exist is just like the cats and dogs. The cats and dogs, they have no such thing as nationalism, this ism, that ism. They simply eat, sleep, have sex, and defend.
So this understanding is the first understanding for spiritual life, that "I am not this body." That is the beginning of spiritual life. And when we nicely understand this fact, that is called brahma-bhūtaḥ, or self-realization stage. So what is the difference between self-realized stage and doggish stage means bodily concept of life. The difference is that as soon as you become self-realized, you become jolly. This self-realization is explained in the Bhagavad-gītā,
- brahma-bhūtaḥ prasannātmā
- na śocati na kāṅkṣati
- samaḥ sarveṣu bhūteṣu
- mad-bhaktiṁ labhate parām
- (BG 18.54)
This self-realization means as soon as we understand that you or I am not this body, I am spirit soul, then immediately we become jolly. And what is jolliness? Na śocati na kāṅkṣati. A jolly person never lament nor desire. That is Kṛṣṇa consciousness. He has no want and he has no loss. Material life means always want and always loss. And spiritual life means no loss, no desire, no hankering. So one can distinguish his spiritual life and material life by simple formula. This simple formula: material life means always in want and always in lamentation. And spiritual life means no hankering and no lamentation. When one is fixed up in spiritual life, it is said guruṇāpi duḥkhena na vicālyate (Bg. 6.20-23). When there is very, very acute reverse condition of life, one is not disturbed. That is spiritual life. And samaḥ sarveṣu bhūteṣu, at that stage only there is possibility of so-called unity, fraternity, friendship. Your France, you have got slogan, what is that? Fraternity, friend... No eternity. Equality, fraternity, and what other thing?