The yogi whose self is content with knowledge and realization, who stands unshakable, and who has mastered the senses, is called one who is disciplined in yoga. To such a person a clod of earth, a stone and gold are all the same.
Explanation
Krishna continues describing the person who has truly mastered yoga (spiritual discipline). Such a person is fulfilled by knowledge (jñāna) and its direct realization (vijñāna), remains unshakable (kūṭastha, read either as 'unchanging' or as 'firm like an anvil'), and has control of the senses, so wealth and worthless things look equal. Traditions also differ on jñāna and vijñāna: some read them as scriptural knowledge and personal experience, others as knowledge of the self and of its manifestation in the world.