There is no bar for anyone, that one cannot become the spiritual master. Everyone can become spiritual master, provided he knows the science of Kṛṣṇa. That is the only qualification. And that is very reasonable. If you do not this . . . do not know the subject matter, how can you be a teacher? Eh? A teacher means he knows the thing. He knows the science. So only qualification of the spiritual master, as Śrī Caitanya Mahāprabhu says, kibā śūdra, kibā vipra, nyāsī kene naya, yei kṛṣṇa-tattva-vettā: "Anyone who knows the science of Kṛṣṇa . . ." This is science of Kṛṣṇa, this Bhagavad-gītā. If anyone knows perfectly, then he becomes the spiritual master.
And there is need of spiritual master at the present moment. We require thousands of spiritual master to preach all over the world this science of Kṛṣṇa. The science of Kṛṣṇa. That will solve all problems of the world. Take it from me. We discussed amongst our confidential devotees here, and they agreed that actually this is the science which can mitigate all the problems of the world.
So yaj jñātvā punar moham evaṁ yāsyasi. So Kṛṣṇa says to Arjuna . . . He's addressing Arjuna, because Arjuna is hearing as representative of us. He was not speaking to Arjuna alone, but He was speaking to all the human race. So yaj jñātvā na punar moham: "By understanding this science then you cannot go, you cannot be illusioned." Because Arjuna was illusioned and he was not prepared to fight, so this instruction was given, this Bhagavad-gītā instruction was given to Arjuna. So He says that, "If you have actually undergone the training under the experienced, bona fide spiritual master, then you would not have gone under such illusory energy."