It is not inertia—"I have got . . . chanting Hare Kṛṣṇa, I shall go and sit down, eat at the expense of others and chant Hare Kṛṣṇa." No. This is karma-yoga. Prāṇair arthair dhiyā vācāḥ (SB 10.22.35). You have to employ your life, your money, your words and your intelligence, all for Kṛṣṇa. That is Kṛṣṇa consciousness. If you have got enough money, spend it for Kṛṣṇa. Don't stock it. The more you spend, more you become balanceless for spending Kṛṣṇa, then more you are benefited. This is the process. That will be taught in the karma-yoga section.
And how one can . . . unless one is spiritually advanced how he can sacrifice his hard-earned money for Kṛṣṇa? Everyone thinks, "Oh, I have earned this money working so hard. Why shall I spend it for Kṛṣṇa? Let me keep it. I shall do it for my sense gratification." This is . . . this kind of advancement is no value. You see? How one has learned to sacrifice everything for Kṛṣṇa.
Just like Arjuna. He sacrificed his whole family for Kṛṣṇa. In the beginning he hesitated, "How can I kill my family members, this fight?" And when he became Kṛṣṇa conscious, "Never mind, I shall kill all of them." This is called sacrifice. This is Kṛṣṇa conscious. He sacrificed all sentiments, all connection, everything for Kṛṣṇa. That is called sannyāsa, real sannyāsa. Although he was a warrior, a fighter, a householder having more than dozen wives, but he was sannyāsī, because he sacrificed everything for Kṛṣṇa. That is wanted. That is Kṛṣṇa conscious.
So everyone can test how far he has advanced simply by this, "How far I have become prepared to sacrifice everything for Kṛṣṇa?" He doesn't require to take certificate from others. He can test himself, "How far I am prepared?" Then it is all right. This is the standard.