अध्येष्यते च य इमं धर्म्यं संवादमावयोः ।
ज्ञानयज्ञेन तेनाहमिष्टः स्यामिति मे मतिः ॥ १८.७० ॥

adhyeṣyate ca ya imam dharmyam samvādam-āvayo: |
jñāna-yajñena tenāham-iṣṭa: syām-iti me mati: || 18.70 ||

Krishna says there is none greater than such an exponent, who devotes his life for the mission of imparting spiritual message, especially of Bhagavad Gita. Nor one greater will ever be born. This means the highest task and mission for a pious, noble, righteous person is to imbibe the spiritual wisdom and dedicate himself wholesomely to its dissemination. To complete the benefits of learning, realizing and imparting the gospel, Krishna has to say:

I am also pleased by him who performs the Jñāna Yajña, the study of this precept, in the form of our dialogue. This is my considered view.

To study the dialogue, which is extremely righteous, noble and spiritual, like any other book of knowledge, is itself a full-fledged jñāna yajña. Krishna has already pointed out that jñāna yajña is loftier than dravya yajña (material sacrifices). Also, it is a fact that all kinds of rituals and ceremonies will have their fulfillment only in wisdom or jñāna (4.33).

Jñāna or viveka is the goal. The seeker must note that any kind of ritualistic addiction, however promising or adorable the rituals may be, will only hinder and delay the dawning and growth of viveka, discrimination, which is the core of spiritual wisdom and elevation. Krishna has been emphasizing this all along (2.45, 6.44, 7.23, 9.25).

Viveka implies stern indifference to all kinds of rituals, which promise worldly prosperity or posthumous rewards like heaven. The seeker should have the depth of discrimination to discard all such temptations and eulogistic statements.

Do not, therefore, seek any other means like yāgas and yajñas enjoined by the Vedas. Be focused on the study of Bhagavad Gita. Be given to reflection and contemplation on its message. That will be the most rewarding pursuit for you. The intelligential pursuit is the highest in human life. This will please the Supreme the most. Leave all other cravings and involvements.