Only bhakti-yoga reveals Krishna truly; active service surpasses the pretense of imitation in seclusion.Listen — Srila Prabhupada Uvaca
Anantarām Śāstrījī: [chants slokas, devotees repeat] vṛndāvane ramaṇe-reti-prasiddha-bhūmau atraiva kṛṣṇa-balarāma supāda-mūle jñānaṁ paraṁ parama-puruṣa bhakti yuktam dātre sadaiva prabhupāda namo namas te Oṁ namo bhagavate vāsudevāya. Oṁ namo bhagavate vāsudevāya. Oṁ namo bhagavate vāsudevāya. [chants verse; Prabhupāda and devotees respond] [break] rūpe ime sad-asatī tava veda-sṛṣṭe bījāṅkurāv iva na cānyad arūpakasya yuktāḥ samakṣam ubhayatra vicakṣate tvāṁ yogena vahnim iva dāruṣu nānyataḥ syāt [SB 7.9.47] [03:22] Puṣṭa-Kṛṣṇa: Translation: "By authorized Vedic knowledge one can see the cause and effect of the cosmic manifestation of the Supreme Personality of Godhead, because the cosmic manifestation is also His energy. Both of them are different energies of the Lord and nothing else.
The wise man can see how the fire is spread within the wood by consideration of cause and effect. Similarly, persons engaged in devotional service understand, O my Lord, how You are both the cause and effect." Prabhupāda: rūpe ime sad-asatī tava veda-sṛṣṭe bījāṅkurāv iva na cānyad arūpakasya yuktāḥ samakṣam ubhayatra vicinate tvam... In this book it is vicinate. I think that other book, vicikṣate? Puṣṭa Kṛṣṇa: Vicakṣate. And in the other book it says. Prabhupāda: Yes.
It doesn't make any difference. yuktāḥ samakṣam ubhayatra vicinate tvāṁ yogena vahnim iva dāruṣu nānyataḥ syāt [SB 7.9.47] So yogena, this word, is very important in this verse. There are... Yogena means "by the means of"; upāyena, "by the means of." So as it is stated in the Bhagavad-gītā, Kṛṣṇa says that bhaktyā mām abhijānāti yāvān yaś cāsmi tattvataḥ [Bg 18.55]: "Only by devotional service one can understand Me." So here the word yogena should not be understood otherwise. If one says that jñāna-yogena, karma-yogena, haṭha-yogena, dhyāna-yogena...
There are many yoga system. One can understand. That is the usual proverb[?] nowadays, that "Any means, you can understand the Absolute Truth." Yata mata tata patha. "You can have your own process or yoga, and you can realize God." But that is not possible.
Kṛṣṇa personally says, bhaktyā mām abhijānāti [Bg 18.55]. In another place, bhaktyā ekayā: "Only through devotional service." [SB 11.14.21] And practically we see there are many jñānīs and dhyāna-yogīs, karmīs; they have no clear conception of the Absolute Truth. Vague idea. Even in many other religious system they have got some conception of God, not clear idea.
But in bhakti-yoga you can understand directly the Supreme Personality of Godhead, Kṛṣṇa. Kṛṣṇa is the Supreme Personality of Godhead. Kṛṣṇas tu bhagavān svayam [SB 1.3.28]. There are many expansion of God. Advaitam acyutam anādim ananta-rūpam [Bs 5.33].
He has got many forms, but this form which we know as Kṛṣṇa, that is the original Kṛṣṇa, or original God. That is stated in the Bhagavad-gītā. Kṛṣṇa says, mattaḥ parataraṁ nānyat [Bg 7.7]: "Although I have got many forms, but the original, supreme form is Kṛṣṇa." But that does not mean that the other forms of Kṛṣṇa, not our manufactured, but as it is stated in the śāstra... Kṛṣṇa has got many names: Rāma, Govinda, Nṛsiṁha, Varāha.