You cannot deviate from this process. There is no other alternative process. You cannot say that "I will be liberated by this process or that process." No. Because it is Kali-yuga, any other process will not be successful. You adopt any process; ultimately you have to come to this process, bhakti-yoga. You can work on karma-yoga. You can work on jñāna-yoga. You can work on haṭha-yoga. There are different yogas. Yoga means how to connect with the Supreme. Yoga means connection, and viyoga means distraction. We know, anyone who knows mathematics, yoga. Yoga means addition; and subtraction, viyoga. So at the present moment, in our conditional stage, we are separated. Not exactly separated, but we have forgotten. We have forgotten our relationship with the Supreme Personality of Godhead. So we have to connect it again. That is called yoga. Because we are now disconnected somehow or other, now we have to connect it again.
So any yoga system means an endeavor to connect our relationship with the Supreme Lord. That is called yoga. So someone is trying to make the connection, karma-yoga. Someone is trying by jñāna-yoga. Someone is trying haṭha-yoga. But the real aim is bhakti-yoga. Just like different steps: You are on the first step, and other is on the second step, and other is on the third step, and other is on the fourth step. But the ultimate goal is bhakti-yoga. You cannot understand God, or Kṛṣṇa, by any other yoga. It may be a step forward, but ultimately you have to come to the bhakti-yoga. Therefore in the Bhagavad-gītā it is said, bahūnāṁ janmanām ante (BG 7.19): "After many, many births' endeavor to execute the yoga system," bahūnāṁ janmanām ante jñānavān, "one who is actually practicing jñāna-yoga or mystic yoga, he comes to the bhakti-yoga." Bahūnāṁ janmanām ante jñānavān māṁ prapadyate. Prapadyate. This is bhakti-yoga. And still clearly explained. What is that prapatti? Vāsudevaḥ sarvam iti sa mahātmā sudurlabhaḥ (BG 7.19): "When one comes to this understanding that Vāsudeva, Kṛṣṇa, is everything, I surrender to Kṛṣṇa.' " Kṛṣṇa is canvassing personally. Kṛṣṇa is so kind that sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66). That we'll not take. "Oh, Kṛṣṇa is claiming too much." But that is the ultimate goal, that you have to surrender to Kṛṣṇa. That is the highest perfection.