Sometimes the Personality of Godhead descends Himself; otherwise, He deputes His confidential servants to do this act of kindness. All the messiahs-saints who have come before or who will come in the future to preach the transcendental message of the kingdom of Godhead—are to be understood as the most confidential servants of the Personality of Godhead. Lord Jesus Christ appeared as the son of Godhead, Muhammad introduced himself as the servant of Godhead, and Lord Caitanya presented Himself as the devotee of Godhead. But whatever may be their identity, all such messiahs were of the same opinion about one thing. They preached unanimously that there is no peace and prosperity in this mortal world. All of them agreed that we have to go to a separate world, where peace and prosperity have their real being. We have to search out our eternal peace and prosperity in the kingdom of God, which is a place other than this mortal world. Even such messiahs and reformers as Lord Buddha—who did not accept the existence of Godhead and preached morality and ethics in the spirit of atheism—and Śaṅkarācārya—who did not accept the Personality of Godhead and preached morality and ethics in the spirit of pantheism—never preached that there is any possibility of attaining eternal peace and prosperity in this material world.
(Message of Godhead).

Jesus Christ and Muhammad, two powerful devotees of the Lord, have done tremendous service on behalf of the Lord on the surface of the globe.
(Srimad Bhagavatam------2:4:18------purport).

Sometimes the Personality of Godhead descends Himself; otherwise, He deputes His confidential servants to do this act of kindness. All the messiahs-saints who have come before or who will come in the future to preach the transcendental message of the kingdom of Godhead—are to be understood as the most confidential servants of the Personality of Godhead. Lord Jesus Christ appeared as the son of Godhead, Muhammad introduced himself as the servant of Godhead, and Lord Caitanya presented Himself as the devotee of Godhead. But whatever may be their identity, all such messiahs were of the same opinion about one thing. They preached unanimously that there is no peace and prosperity in this mortal world. All of them agreed that we have to go to a separate world, where peace and prosperity have their real being. We have to search out our eternal peace and prosperity in the kingdom of God, which is a place other than this mortal world.
(Message of Godhead).

The Lord says that the purpose of all Vedic instruction is to achieve the highest goal of life, back to Godhead. Any scripture of any country, not only of this Bhagavad-gītā, but any scripture, they are aiming simply how to get us back to Godhead. That is the purpose. Take for any ex... Take for example any of the great religious reformers or ācāryas of any country. In your country, Lord Jesus Christ or Lord Buddha. Of course, Lord Buddha, he advented himself in India, but later on his philosophy was broadcast all over Asia. Then Lord Kṛṣṇa, or Hazrat Muhammad—anyone take. Nobody will say that "You make your best plan in this material world and live peacefully." That is a common factor. There may be little difference according to country, climate and situation in the scriptural injunction, but the main principle—that we are not meant for this material world, we have our destination in the spiritual world—that is accepted by everyone.
(Lecture on Bhagavad-Gita------8:28-29------by Srila Prabhupada).

Now, so far our experience is concerned, Lord Caitanya says there are innumerable. So how we can accept a avatāra, a śaktyāveśa avatāra, whose names are not mentioned herein? Then we have to... As in the beginning, Lord Caitanya says that by the symptoms we can understand that He is śaktyāveśa. By the symptoms and activities and influence. So what is that symptom? Symptom is that eternal and temporary. So avatāra, incarnation, comes to glorify the eternal existence of the Supreme Lord. So any avatāra, any incarnation, he comes to glorify that "There is spiritual kingdom, there is God, and I have come to reclaim you to back to Godhead, back to home." This is the symptom. So therefore, by that symptom, we accept Lord Jesus Christ as śaktyāveśa avatāra, or Hazrat Muhammad, he's also. Because these two religious leaders of the world, they preached about the glorification of the Supreme Lord. And they sacrificed everything for preaching the glories of the Lord. Therefore... And their influence and their followers, there are... These are the symptoms by which we can understand that Jesus Christ and Hazrat Muhammad was, were śaktyāveśa avatāras.
(Lecture on Sri Caitanya Caritamrta------2:20:367-384-----by Srila Prabhupada).

So to think of Kṛṣṇa is also bhajana. There are different process of bhajana. To hear of Kṛṣṇa, that is also bhajana. Just like you are hearing. And to speak about Kṛṣṇa. I am speaking; you are hearing. Similarly, when the speaking and hearing is finished, then you think of Kṛṣṇa, or by chanting Hare Kṛṣṇa mantra, you think of Kṛṣṇa. Kṛṣṇa being absolute, all these different processes are also the same, one and the same. There is no difference between chanting and hearing or remembering or worshiping in the temple. Śravaṇaṁ kīrtanaṁ viṣṇoḥ smaraṇaṁ pāda-sevanam, arcanam (S.B.7:5:23). The temple worship is called arcanam. Vandanam, offering prayers. The Christians, the Muhammadans, they offer prayer. Of course, not to the Supreme Personality of Godhead, but impersonal feature or some idea. But that prayer is also one of the processes of bhakti. Anyone who accepts the supremacy of God, the Supreme Personality of Godhead, his process of worship has to be considered in the category of bhakti-yoga. The more and more you become purified by executing the bhakti-yoga process, then you come to the real platform.
(Lecture on Srimad Bhagavatam------1:2:8-------by Srila Prabhupada).

All the great ācāryas, like Rāmānuja, Madhva, Caitanya, Sarasvatī Ṭhākura or even, in other countries, Muhammad, Christ and others, have all extensively glorified the Lord by chanting always and in every place. Because the Lord is all-pervading, it is essential to glorify Him always and everywhere. In the process of glorifying the Lord there should be no restriction of time and space. This is called sanātana-dharma or bhāgavata-dharma. Sanātana means eternal, always and everywhere. Bhāgavata means pertaining to Bhagavān, the Lord. The Lord is the master of all time and all space, and therefore the Lord's holy name must be heard, glorified and remembered everywhere in the world. That will bring about the desired peace and prosperity so eagerly awaited by the people of the world.
(Lecture on Srimad Bhagavatam------2:2:36-------by Srila Prabhupada).

So the simple thing is that father has to surrender, er, the son has to surrender to the father. Simple thing. And the father, what kind of father? He is not ordinary father. He is Bhagavān. Bhagavān means possessing full power, full strength, full wealth, full knowledge. He's not ordinary father. He is not like material father, a poor father without any knowledge. But here is the father who is full of knowledge, full of opulence, and we have to surrender to such father. Don't you think yourself to be lucky to go to such a father and enjoy His property? Why you are so fools? This foolishness, why they are so much fools, that is described in the next verse.
na māṁ duṣkṛtino mūḍhāḥ
prapadyante narādhamāḥ
māyayāpahṛta-jñānā
āsuraṁ bhāvam āśritāḥ
(B.G.7:15)
These are the good qualifications of the fools. What is that? Duṣkṛtina. Duṣkṛtina means always doing against the scriptural or religious injunction. Always, continuously. Our business is now to break the rules of scriptures. That's all. That has become our business, duṣkṛtina, always. Duṣkṛtina, sukṛtina, means a pious worker and impious worker. Just a man, lawful; and law, outlaw. Who is outlaw, and who is lawful? One who obeys the state laws, he is called lawful citizen. And one who does not obey the state laws, who is put into the prison house, he is called outlaws. So these duṣkṛtina and sukṛtina, who is pious and who is impious, there must be some standard rules. The pious is he who follows the scriptural injunction, and impious is he who does not follow. Every civilized nation, every civilized man has got his scripture. May he be a Christian, may be a Hindu, may be a Muhammadan or may be a Buddhist. It doesn't matter. But everyone has got his authority, book of authority, scripture. So one who does not follow the scriptural injunction, he is outlaw. He is punishable. Duṣkṛtina. And mūḍha. Mūḍha means fool number one. These people do not go to God. These qualified peoples—duṣkṛtina, means impious; mūḍha, fool number one; and narādhama, and lowest of the human kind; and māyayāpahṛta-jñāna, and bewildered of his knowledge; and āsuraṁ bhāvam āśritaḥ, and atheistic mentality.
(Lecture on Bhagavad-Gita------7:11-16------by Srila Prabhupada).

One who becomes inquisitive to hear, so śuśrūṣoḥ. Śuśrūṣoḥ means one who is very inquisitive to hear; at the same time, to render service. These two qualifications. Śuśrūṣoḥ. Śraddadhānasya (S.B.1:2:16), with faith. Vāsudeva-kathā-ruciḥ. For him the taste for hearing kṛṣṇa-kathā is very easy. And syān mahat-sevayā. And this is also can be possible if we are fortunate enough to come in contact of a great soul, mahat-sevā. Mahat means great. And if we serve him, if we want to please him, mahat-sevayā viprāḥ: "My dear brāhmaṇas," he was addressing, puṇya-tīrtha-niṣevaṇāt. And puṇya-tīrtha. There are many sacred places. They are called puṇya-tīrtha. There are two kinds of sacred places. Just like if you go to a place... Just like in Vṛndāvana or Kankhara(?). In India there are... In the Christian also you have got your sacred place. The Muhammadans they have got their sacred place, Medina, Mecca. You have got your Jerusalem. Similarly, these, those who are followers of Vedic principles, they have got their several places, sacred places. One... Some of you who have visited India might have seen Hardwar, Kankhar(?), Lakshmanjhula, Prayāga, Vṛndāvana, and Rāmeśvaram. There are many places.
So by serving these sacred places... To serve these sacred places means to... There are many good souls, great souls. So if you can find out such great souls, they are making their performances there. So if you find out some good, I mean to say, transcendentalist, and if you hear from him, then your process of life may be changed.
(Lecture on Srimad Bhagavatam------1:2:14-16-------by Srila Prabhupada).

Therefore this Kṛṣṇa consciousness movement is postgraduate position of all religions. It is not any sectarian religion. You accept Christianity—very good. You accept Muhammadanism, Islamism—very good. You accept Hinduism—that's all right. We have no quarrel with Hindus and Muslims or Christians or Buddhists. But our objective is that religion means there is connection, relationship with God. Take, for example, Christian religion. They accept God: "God created this," the beginning of Bible. That's a fact. So the God consciousness is there. "God is great," the God consciousness there. Now these Christmas holidays you have begun in your country. Throughout the whole month of December you'll observe nice festivals, festivities. Why? Where it began? God consciousness. Lord Christ he came to give you God consciousness, and in his relationship these festivities are going on. The beginning is God consciousness, but we have lost it. So people cannot be happy without reviving God consciousness. It may be named in a different way—"Kṛṣṇa consciousness." That means God consciousness. That is the necessity. He's trying to love somebody. That somebody's love will be perfected when he loves Kṛṣṇa or God. We are teaching that. Try to love God, and if you love God, if you love Kṛṣṇa, then automatically you love everybody. That is the perfection of love. The example is just like if you love your stomach, if you supply nice food to your stomach, that means you love all the parts of your body. If you supply foodstuff in the stomach, the energy is distributed in all parts of the body. That means you love all parts of the body. If you love the tree, you pour water on the root and the water is distributed to the branches, fruits, flowers, leaves, everywhere.
(Lecture on Srimad Bhagavatam------2:2:5-------by Srila Prabhupada).