Here Kṛṣṇa, because He is Supreme Soul, Supreme Personality of Godhead, He means that dharma, or occupational duty, on the spiritual platform. He does not mean dharma or occupational duty on the gross bodily platform or subtle mental platform. He means dharma, the occupational duty on the spiritual platform.
And that is confirmed by Lord Caitanya, jīvera svarūpa haya nitya-kṛṣṇa-dāsa: that real constitutional position of the living entity, especially of the human being, is to accept servitorship of Kṛṣṇa. So in other word, when there is discrepancy in the matter of Kṛṣṇa consciousness, at that time Kṛṣṇa comes, Kṛṣṇa descends. Kṛṣṇa descends.
Kṛṣṇa descends means sometimes He personally descends, sometimes He descends by His incarnation, sometimes He descends as a sound vibration, sometimes He descends as devotee. There are many different categories of His descendance. And at the present moment this Kṛṣṇa has descended in His holy name. You should understand that. Kṛṣṇa kali-kāle nāma-rūpe kṛṣṇa-avatāra (CC Adi 17.22). This is the statement of Lord Caitanya, that in this age of Kali, Kṛṣṇa has descended in the sound vibration form. Sound is also one of the form. Just like oṁkāra is the form of Kṛṣṇa, akṣarāṇām oṁkāro 'smi. Similarly, Kṛṣṇa, now, at the present moment, has descended in the form of His holy name.