The learned scholar, who is aware of this transcendental knowledge, does not try to annihilate anyone or order anyone annihilated, like a fool. One may then ask this question: What was the purpose for which Arjuna fought on the battlefield of Kurukṣetra? The answer is plain and simple. The fight that is fought in pursuance of military duty touches the body only. The effects of war or pitched upheavals touch the body only and not the soul, much as the effects of a sumptuous feast touch the hunger of the stomach only and not that of the mind. None of these material effects ever touches the eternal living entity, the spirit soul, because the living spirit is invincible, nonflammable, nonmoistenable, and nondryable. Everything that is material can be cut into pieces, can be burnt up, can be moistened, and can be dried up in the air. Thus, to illustrate that the living entity, or spirit soul, is entirely metaphysical, the above explanation is given as indirect proof by negation of material attributes.
It is said that the living spirit is eternal, all-pervading, unchangeable, indestructible, and so forth. What is known in India as sanātana-dharma, or "the eternal religion," is meant for this living spirit. That is to say, real spiritualism is transcendental to the various religions that focus on the gross material body or the subtle material mind. This sanātana-dharma, the eternal religion, is never established just for one particular people, place, or time. It is for this reason that sanātana-dharma is also termed all-pervasive. All other religions except the one that is known as sanātana-dharma are meant for the culturing of physical or psychological effects.
The psychological effects of various peoples, places, and times have led us to designate ourselves as Hindus, Muslims, Christians, Buddhists, Congressites, Luddites, Socialists, Bolsheviks, and so forth. Specifically in the field of religion, we have tried to establish many varieties of ephemeral physical and mental arrangements, varieties of denominations, according to various peoples, places, and times. And precisely for this reason, we can envision ourselves "changing religions." One who is a "Hindu" today may become a "Muhammadan" the next day, or one who is a "Muhammadan" today may become a "Christian" the next day, and so on. But when we attain transcendental knowledge and are established in the actual, eternal religion of the actual living entity—the spirit soul—then and then only can we attain real, undeniable peace, prosperity, and happiness in the world. Until that time, there can be no peace and prosperity for us, because we are not situated on the plane of sanātana-dharma, or the eternal religion of the soul.