Hayagrīva: He says, "There must be a deep-seated change in the inner man." He also sees that modern man needs a guru, or someone, he says, "to explain religion to man. Whereas the man of today can easily think and understand all the 'so-called truths' dished out to him by the State, his understanding of religion is made considerably more difficult owing to the lack of explanations. Do you understand what you are reading?" And he said, "How can I, unless someone guides me?"
Prabhupāda: Yes. That is the Vedic injunction. Tad-vijñānārthaṁ sa gurum evābhigacchet (MU 1.2.12). It is essential that one must go to guru and with guru Guru is representative of God. Sākṣād-dharitvena samasta-śāstrair **. He, guru, being representative of God, he is worshiped as God, but he never says that "I am God." He is servant God. He is worshiped as God, but he is servant of God, and God is the master God. This is the conception of Vaiṣṇava philosophy. And who is guru, that is described by Caitanya Mahāprabhu. He asked everyone to become guru. Āmāra ājñāya guru hañā tāra' ei deśa: (CC Madhya 7.128) "Wherever you are staying, it doesn't matter. You become a guru and deliver all these foolish persons who are in ignorance." So one may say that "I am not so learned. How can I become guru?" So Caitanya Mahāprabhu said that you do not require to be a learned scholar. There are many so-called learned foolish scholars. It has no meaning. You just instruct what Kṛṣṇa has instructed. Yāre dekha tāre kaha 'kṛṣṇa'-upadeśa (CC Madhya 7.128). So real instruction is there, Bhagavad-gītā, and any who explains Bhagavad-gītā as it is, he is guru. This is the definition of guru. So if one is fortunate enough to approach such guru, then his life becomes successful. Guru is essential.