Eleven lakhs' species of insects, reptiles. Then birds. Pakṣiṇāṁ daśa-lakṣaṇam. In this way, we fulfill eight millions of different forms of life. Then we come to the form of human life. Therefore Prahlāda Mahārāja said that kaumāra ācaret prājño dharmān bhāgavatān iha, durlabhaṁ mānuṣaṁ janma (SB 7.6.1). This mānuṣaṁ janma is very, very rare. We should not be satisfied only becoming a very big businessman. We must know what is next life, what I am going to be.
So there are different kinds of men. Some of them are called the karmīs, and some of them are called the jñānīs, and some of them are called the yogīs and some of them are called the bhaktas. The karmī, they are after material happiness. In this life also, they want the highest, the best comfort of material life, and after death also they want to be elevated to the heavenly planets. Similarly jñānīs, they also want. They, being fed up of this material way of life, they want to . . . they want to merge into the existence of Brahman. That is jñānī. The yogīs, they also want mystic power. And the bhaktas, they want simply service of the Lord.
So unless one understands what is Lord, how he can render service to the Lord? This culture is the highest culture. The karmīs' culture, the jñānīs culture, the yogīs culture and the bhaktas culture—there are different cultures. So all of them are called yogīs if they are doing sincerely their duty—karma-yogī, jñāna-yogī, dhyāna-yogī, bhakta-yogī.