One cleanses himself daily by taking a bath in water, but one who takes his bath only once in the sacred Ganges water of the Bhagavad-gītā cleanses away all the dirt of material life. Because Bhagavad-gītā is spoken by the Supreme Personality of Godhead, one need not read any other Vedic literature. One need only attentively and regularly hear and read Bhagavad-gītā. In the present age, mankind is so absorbed with mundane activities that it is not possible to read all of the Vedic literatures. But this is not necessary. This one book, Bhagavad-gītā, will suffice because it is the essence of all Vedic literatures and because it is spoken by the Supreme Personality of Godhead. It is said that one who drinks the water of the Ganges certainly gets salvation, but what to speak of one who drinks the waters of Bhagavad-gītā? Gītā is the very nectar of the Mahābhārata spoken by Viṣṇu Himself, for Lord Kṛṣṇa is the original Viṣṇu. It is nectar emanating from the mouth of the Supreme Personality of Godhead, and the Ganges is said to be emanating from the lotus feet of the Lord. Of course there is no difference between the mouth and the feet of the Supreme Lord, but in our position we can appreciate that the Bhagavad-gītā is even more important than the Ganges.
The Hare Krishna Movement 