So Kṛṣṇa says, sa kāleneha yogo naṣṭaḥ parantapa (BG 4.2). In due course of time that yoga system is now lost. Why? The paramparā system is lost. Learning the system, the Bhagavad-gītā yoga system, from the master to the disciple, when Kṛṣṇa was present personally, it was lost. He says, yogo naṣṭaḥ parantapa. Therefore Kṛṣṇa says, "The same yoga system, Arjuna, I shall inform you." Why? "I am not a Vedāntist." Kṛṣṇa was speaking to Arjuna. Arjuna was not a Vedāntist; he was a military man. A military man is not expected to become a Vedāntist. He knows his military art. Why Kṛṣṇa decided to preach Bhagavad-gītā to Arjuna?
That is also said in the Bhagavad-gītā why He selected Arjuna. He said, bhakto si, priyo si: "My dear Arjuna, you are My devotee and very dear friend. You can understand Bhagavad-gītā." Rāsam yogaṁ taṁ, "You can understand the rasa." Therefore to understand Bhagavad-gītā, one requires to be very intimately connected with Kṛṣṇa as His devotee. Otherwise, Bhagavad-gītā cannot be understood.
Unfortunately... The Bhagavad-gītā is going on all over the world. There are about seven hundred editions in all languages of this Bhagavad-gītā, and it is going on for the last more than one thousand years. That means we can understand from the historical records that in Western countries Bhagavad-gītā is known for the last two hundred and fifty years, and there are German edition, English edition, so many editions.
In spite of Bhagavad-gītā being popular in the Western countries, in spite of our so many svāmīs from India went to preach Indian culture or the Hindu culture, before this movement of Kṛṣṇa consciousness, not a single person became a devotee of Kṛṣṇa. That is a fact. It was simply armchair discussion of Bhagavad-gītā.
But why at the present moment these youngsters, Europeans and Americans, Australians, Canadians, Japanese, why they are taking to Kṛṣṇa consciousness? Because this Bhagavad-gītā is presented as it is, without any adulteration. That is my point. Bhagavad-gītā is not meant for anyone else except the devotee. Bhagavān Śrī Kṛṣṇa could explain this Bhagavad-gītā to the jñānīs, to the yogīs, to the karmīs. But why he selected Kṛṣṇa..., why He selected Arjuna? This is the secret of Bhagavad-gītā: bhakto si, priyo si. And the whole Bhagavad-gītā is taught to make everyone devotee of Kṛṣṇa.
(microphone feedback) Now on account of the microphone being disturbed we could not speak from the very beginning. Tomorrow I shall speak, if the microphone is all right. Today I have given you some introduction about this Kṛṣṇa consciousness. My students have already spoken.