"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. So you try to love God and you'll see that you're loving even an ant. There are many examples I can cite in the history, how a man became universal lover."
(Srila Prabhupada Lecture, Los Angeles, December 2, 1968)