Namely, the name of God is as powerful as God is Himself. It is called pūrṇa. Pūrṇa means complete. And śuddha. Śuddha means without any material contamination. Pūrṇaḥ śuddha nitya. Nitya means eternal. Abhinnatvān nāma-nāminoḥ means without being different from the person whose name we are chanting.
The idea is that when we chant the holy name of God—just like "Kṛṣṇa"—Kṛṣṇa is present there. As soon as you chant God's name... Not necessarily that he will have to chant the name Kṛṣṇa... Any other name which you know that it is God's name, you can chant it. God has got many names, and they can be chanted by different languages in different countries. The effect is the same. Practically, God has no name, but His name is given according to His activities. Just like we are chanting God's name "Kṛṣṇa." Kṛṣṇa means "all-attractive." So God is all-attractive. We can have the idea how we consider attractiveness in this material world. One is attractive in this material world if he is very rich, if he is very powerful, if he is very wise, if he is very beautiful. In this way, in six ways one becomes the most attractive.