We can discuss about the greatness of God, but next stage is that "God is so great, why not let me render some service unto the Supreme, the great?" That is one step forward. Simply to know "God is great, and I am engaged in my own occupational duty," there is no symptom of love. Symptom of love means when one is eager to render some service to the beloved. That is love. Simply I love you and you love me, formality, but there is no service, that is not real love. Real love begins, as it is stated in the śāstra, dadāti pratigṛhṇāti, to give something to the lover, to the beloved, and to take something. Dadāti pratigṛhṇāti bhuṅkte bhojayate (Upadeśāmṛta 4): to accept some eatables from your beloved, and offer him something for eating. Bhuṅkte bhojayate. Guhyam ākhyāti pṛcchati. And you disclose your mind—there is no secrecy between the lover and the beloved—and the other party also discloses. In this way, love becomes manifest. And our business in this human life, as recommended by Caitanya Mahāprabhu, premā pumartho mahān. The highest achievement of life is to be situated on the loving platform with God. That is the highest perfection.
We are, in the material world, we are also busy loving somebody. That is our whole business. Unless one has got family affection, love for wife, children, he cannot work. That is the impetus for economic development. It is admitted by big, big economists. A family man is responsible. Because he has got responsibility to maintain the wife, children, therefore he works hard. That is impetus. So love is there. Unless there is love, you cannot work. That is not possible. So this is material way of life.