"One has to surrender to guru." Why? Jijñāsu: "If you are inquisitive to know the Absolute Truth." And if you want to know something which is flickering, relative truth, that is another thing. But if you want to know the Absolute Truth, śreyaḥ uttamam... Absolute Truth means ultimate benefit, śreya. Ultimate... Yes, exactly the word, benefit. If you want ultimate benefit, then guruṁ prapadyeta. Who is guru? Śābde pare ca niṣṇātaṁ brahmaṇy upaśamāśrayam: one who is expert in understanding the Vedic literature, śābde pare ca, especially transcendental.
So we have to go through like that. As Caitanya-caritāmṛta Kar is explaining, we have to follow this principle. Then if you are really inquisitive to learn the Absolute Truth, they will explain, as here it is explained that here Advaita Ācārya is īśvara, He's incarnation of Mahā-Viṣṇu. Sometimes Advaita Ācārya is called Sadāśiva avatāra. The Sadāśiva is also expansion of Mahā-Viṣṇu. So either way you say, incarnation of Sadāśiva or Mahā-Viṣṇu, it doesn't matter. But Advaita Ācārya is īśvara-tattva. He's not śakti-tattva. He's īśvara-tattva. And we are all śakti-tattva; therefore there is difference. Śakti-śaktimān. Although there is no difference abhinna, but still, śakti-tattva is superior, er, śaktimān tattva is superior than śakti-tattva. So in this way try to understand Śrī Caitanya Mahāprabhu, Nityānanda Prabhu, Advaita Prabhu, and Gadādhara and Śrīvāsādi-gaura-bhakta-vṛnda. And... But they are so kind because they have come to deliver the fallen souls. If you sincerely chant their name, śrī-kṛṣṇa-caitanya prabhu-nityānanda...
Devotees: ...śrī-advaita gadādhara śrīvāsādi-gaura-bhakta-vṛnda.
Prabhupāda: ...they'll be very, very kind to reveal themselves to you, and your path for liberation will be open.