- bahūnāṁ janmanām ante
- jñānavān māṁ prapadyate
- vāsudevaḥ sarvam iti
- sa mahātmā su-durlabhaḥ
- (BG 7.19)
"After many, many births' struggle for acquiring knowledge, when one is fully conscious that 'Vāsudeva, Supreme Lord, Kṛṣṇa, is everything,' that is the perfection of knowledge." So that perfection of knowledge was achieved in the age of goodness by meditation and in the age of Tretā by sacrifice and by Dvāpara by worship, and in this age, this kṛṣṇa-kīrtana.
- kṛṣṇa-padārcana' haya dvāparera dharma
- kṛṣṇa'-varṇe karāya loke kṛṣṇārcana-karma
- (CC Madhya 20.336)
So in the Dvāpara-yuga, in the next millennium, in the age of passion, Lord Kṛṣṇa was Himself present. And He presented this Bhagavad-gītā. And what did He teach in that Bhagavad-gītā? Sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66).
He personally taught the people of the world that one should be a surrendering soul to the Supreme Lord. That will make him happy.