Our loving propensity, when it will be properly employed, when we try to love or develop our loving propensity for God, or directly when we learn how to love God, then our loving propensity is perfect. Then you can love other things, others also. It is not . . . just like watering the root of the tree, you automatically pour water in the other parts of the tree; or supplying foodstuff in the stomach, you supply foodstuff to all the parts of the body. Similarly, if you can develop your love for God . . .
That is already there. It is not an artificial thing. In the Caitanya-caritāmṛta it is said that, nitya-siddha kṛṣṇa bhakti 'sādhya' kabhu naya. Our loving propensity or our love for God is already there in every living being, but it is now covered due to our ignorance, or due to our contamination with this material nature. So simply we have to awaken that love. That is our business. That awakening of love cannot be possible in other living condition than the human being. The human being, the human form of life, is therefore the perfectional stage how to develop our love for God, or how we can love God. This is the main business of human life. Athāto brahma jijñāsā. The Vedānta-sūtra says that this life is especially meant for developing or inquiring about our love with Kṛṣṇa, or God. This is the only business. Athāto brahma jijñāsā.