Prabhupāda: As a gentleman, if you go to somebody's house, you require his permission, but India, still, a sannyāsī doesn't require any permission. He can enter in any householder's house: "Mother, give me some food." This is the introduction. Not that he has gone there for food, but easy introduction. And generally the householder will receive a sannyāsī, "Yes, Swamiji, come here, sit down." They will offer obeisances and then they begin talks. This is the meaning. Not that he is hankering after food. This is only introduction. He's not a beggar. But people take advantage of this dress because they think that "Without any work I can beg and live." That is going on in India. So many rascals, they are taking this sannyāsī dress and living at the cost of others. Therefore people have become disgusted. They have no knowledge to preach. Yes, go on.
Dhṛṣṭadyumna: "If he is actually advanced and so ordered by his spiritual master, he should preach Kṛṣṇa consciousness with logic and understanding. And if he is not so advanced, he should not accept the renounced order of life. But even if he has accepted the renounced order of life without sufficient knowledge, he should engage himself fully in hearing from a bona fide spiritual master to cultivate knowledge. A sannyāsī, or one in the renounced order of life, must be situated in fearlessness, sattva-saṁśuddhiḥ (purity), and jñāna-yoga (knowledge). The next item is charity. Charity is meant for the householders. The householders should earn a livelihood by honorable means and spend fifty percent of their income to propagate Kṛṣṇa consciousness all over the world. Thus a householder should give in charity to such institutional societies that are engaged in that way. Charity should be given to the right receiver. There are different kinds of charities, as will be explained later: charity in the modes of goodness, passion and ignorance. Charity in the mode of goodness is recommended by the scriptures, but charity in the modes of passion and ignorance is not recommended, because it is simply a waste of money. Charity should be given only to propagate Kṛṣṇa consciousness all over the world. That is charity in the mode of goodness. Then as far as dama (self-control) is concerned, it is not only meant for other orders of religious society, but it is especially meant for the householder. Although he has a wife, the householder should not use his senses for sex life unnecessarily. There are restrictions for the householders even in sex life, which should only be engaged for the propagation of children. If he does not require children, he should not enjoy sex life with his wife. Modern society enjoys sex life with contraceptive methods or more abominable methods to avoid the responsibility of children. This is not in the transcendental quality, but it is demoniac. If anyone, even if he is a householder, wants to make progress in spiritual life, he must control his sex life and should not beget a child without the purpose of serving Kṛṣṇa. If he is able to beget children who will be in Kṛṣṇa consciousness, one can produce hundreds of children, but without this capacity one should not indulge only for sense pleasure. Sacrifice is another item to be performed by the householders, because sacrifices require a large amount of money. Other orders of life, namely the brahmacarya, the vānaprastha and sannyāsa, have no money; they live by begging. So performance of different types of sacrifice is meant for the householder. They should perform agni-hotra sacrifices as enjoined in the Vedic literature, but such sacrifices at the present moment are very expensive, and it is not possible for any householder to perform them. The best sacrifice recommended in this age is called saṅkīrtana-yajña, the chanting of Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare, this is the best and the most inexpensive sacrifice. Everyone can adopt it and derive benefit. So these three items, namely charity, sense control and performance of sacrifice, are meant for the householder. Then svādhyāya (Vedic study), and tapas (austerity), and ārjavam (gentleness or simplicity) are meant for the brahmacarya, or student life. Brahmacārīs should have no connection with women; they should live a life of celibacy and engage the mind in the study of Vedic literature for the cultivation of spiritual knowledge. This is called svādhyāya. Tapas, or austerity, is especially meant for the retired life. One should not remain a householder throughout his whole life; he must always remember that there are four divisions of life: brahmācārya, gṛhastha, vānaprastha and sannyāsa. So after gṛhastha, householder life, one should retire. If one lives for a hundred years, one should spend twenty-five years in student life, twenty-five years in household life, twenty-five in retired life and twenty-five in the renounced order of life. These are the regulations of the Vedic religious discipline. A man retired from household life must practice austerities of the body, mind and tongue. That is tapasya.