If one keeps himself under this misidentification that "I am this body," he remains an animal.
So Sanātana Gosvāmī submitted to his guru. This is the actually necessity of approaching a guru, not that guru should be approached for some material gains, for some medical help, "Guru Mahārāja, I am suffering from this disease. Give me your blessing," and he gives some powder and you are cured. So for this purpose there is no necessity of guru. You can go to a medical man, then he can help you. Why should you search out a guru? But that has become a fashion. For some material gain they would go to guru. And if the guru can manufacture gold, then what to speak of? This is going on. But śāstra does not say that you should approach a guru for some material benefit. No. Tasmād guruṁ prapadyeta jijñāsuḥ śreya uttamam (SB 11.3.21). You should approach a guru—what purpose? Jijñāsuḥ, if you are inquisitive, jijñāsuḥ. What is that jijñāsuḥ? Athāto brahma jijñāsā. This is the Vedānta. Jijñāsā, enquiry, means not for any other purpose, any political, social or this . . . so many things are there in this material world. But real jijñāsā is brahma-jijñāsā. That is, the Vedānta-sūtra begins.