Of all the killings of animals, that of the cow is the most despicable, because the cow, by giving its milk, provides us with so much satisfaction. Therefore, killing it is an act of the worst ignominy and the deepest ignorance.

What is wrong with killing land and aquatic animals?

We must never prevent, stop, or interrupt the spiritual evolution of a soul embodied in an animal body.

Non-violence consists of never interrupting the spiritual evolution of any living being, human, animal, or plant. Let us beware of believing that since the spiritual soul can never die and therefore survives the body at the moment of death, there is no harm in slaughtering animals for the satisfaction of our senses.

Although amply provided with grains, various fruits, and milk, humankind indulges in the consumption of animal flesh. It is not necessary to kill animals, because they, by reincarnating from one species to another, follow a certain spiritual evolution and therefore also progress.

In truth, an animal that is slaughtered sees its spiritual progress hindered, or even stopped. Indeed, before rising to a higher animal species, it will have to return to the species it prematurely left, to complete the time allotted to it.

We must never prevent, stop, or interrupt the spiritual evolution of a soul incarnated in an animal body, for the sole selfish reason of satisfying our palate.

If we, spiritual souls incarnated in human bodies, find it normal to pursue our spiritual evolution, by what right do we prevent a soul incarnated in an animal's material form from also pursuing the same evolutionary path?

Let us not forget that Lord Krishna, God, the Supreme Person, asks us to take care of land and aquatic animals, to protect them, and to ensure that no harm is done to them.

We must also act in the same way towards all plants, from blades of grass to large trees that shelter many living beings—ants, various insects, birds, monkeys, etc.—and ensure that no harm is done to them.

What we have done to others will be done to us.

God fulfills our desires and punishes our actions.

When a hunter or a slaughterhouse worker makes animals suffer, they will have to account for it.

By wounding an animal or a human being, leaving them half-dead, the hunter, the slaughterhouse worker, or the murderer makes them suffer. When they consciously make them suffer unnecessarily by only half-killing them, they are guilty of a very serious sin. They will therefore also have to suffer in the same way as a measure of retaliation. (This is the law of karma, the law of action and reaction, or the law of cause and effect)

Human beings today consider themselves very advanced in the field of education, but they know nothing of the rigorous laws of nature, stemming from divine laws that prevail over those of men, and this throughout the entire material cosmos. The laws of nature dictate that whoever takes the life of a living being will suffer the same fate; their life will also be taken from them.