So each and every item, if you study what is Kṛṣṇa consciousness, then your life will be happy—if you take to it. Simply understanding Kṛṣṇa, you'll be liberated. Kṛṣṇa says in the Bhagavad-gītā,
- janma karma me divyaṁ
- yo jānāti tattvataḥ
- tyaktvā dehaṁ punar janma
- naiti mām eti...
- (BG 4.9)
Kṛṣṇa says that "If somebody simply understands Me, Kṛṣṇa, in fact..." To understand Kṛṣṇa superficially is no knowledge of Kṛṣṇa. Tattvataḥ. That tattvic knowledge is also very difficult. Kṛṣṇa says in the Bhagavad-gītā,
- manuṣyāṇāṁ sahasreṣu
- kaścid yatati siddhaye
- yatatām api siddhānāṁ
- kaścid vetti māṁ tattvataḥ
- (BG 7.3)
It is very difficult to understand. Because Kṛṣṇa says out of many millions of people, one is perfect, and out of many millions of perfect men, one can hardly understand Kṛṣṇa. So it is very difficult to understand Kṛṣṇa. But if one is fortunate, he can understand. How? Now, Kṛṣṇa says, mattaḥ parataraṁ nānyat kiñcid asti dhanañjaya (BG 7.7). Ahaṁ sarvasya prabhavo mattaḥ sarvaṁ pravartate (BG 10.8). "There is no more higher truth than Me." So if one is fortunate to understand Kṛṣṇa, that there is no more higher truth than Kṛṣṇa. And if he follows the advice of Kṛṣṇa, sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66), then he's fortunate. Fortunate means everyone has got his discretion. So one who has the fortune to discriminate, then he can understand Kṛṣṇa very easily.