Revatīnandana: "The ninth offense is inattentive while chanting the holy name."
Prabhupāda: Yes. This is ninth offense. While you chant, you hear also. You don't turn your attention to anything else—mechanically chanting and thinking of something. Thinking of Kṛṣṇa is all right, but if I think something which is not in Kṛṣṇa consciousness . . . best thing is that I shall chant Hare Kṛṣṇa, and each word I shall hear, then it will be very much effective. Yes.
Revatīnandana: "The tenth offense is attachment to material things while engaged in the practice of chanting."
Prabhupāda: That I explained, ahaṁ . . . this is the disease, ahaṁ mameti (SB 5.5.8). The material disease means I am thinking this body, "I am," and everything belonging to this body or in relationship with the body, "mine." This is material disease. So we shall see. By chanting we shall see how much we are making progress, how much I am free from these two concept of life that, "I am this body, and anything belonging to this body is mine."
This is the test, how we are becoming free from these two concept of life. If there is still the concept that, "I am this body and anything belonging to this body is mine," then you have to chant very cautiously to make progress. Yes. That's all. These ten kinds of offenses you should be guard against.