(Prabhupada's lecture - Śrīmad-Bhāgavatam 1.15.51 - Los Angeles, December 28, 1973)
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. It may be degraded in another form. 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.