It is described that due to their lusty desires they have lost their intelligence, and therefore they have taken to worshiping the different demigods. So in the Viṣṇu-rahasya these demigod worshipers are forcefully condemned by the statement that it is better to live with the most dangerous animals than to associate with these persons.
Another stricture is that a person may have many disciples, but he should not act in such a way that he will be obliged to any of them for some particular action or some favor. And one should also not be very enthusiastic about constructing new temples, nor should one be enthusiastic about reading various types of books, save and except the ones which lead to the advancement of devotional service. Practically, if one very carefully reads the Bhagavad-gītā, Śrīmad-Bhāgavatam, Teachings of Lord Caitanya and this Nectar of Devotion, that will give him sufficient knowledge to understand the science of Kṛṣṇa consciousness. One need not take the trouble of reading other books.
In the Seventh Canto of Śrīmad-Bhāgavatam, 13th Chapter, 7th verse, Nārada Muni, while discussing with Mahārāj Yudhiṣṭhira the various functions of the different orders in society, especially mentions rules for the sannyāsīs—those persons who have renounced this material world. One who has accepted the sannyāsa order of life is forbidden to accept as a disciple anyone who is not fit. A sannyāsī should first of all examine whether a prospective student is sincerely seeking Kṛṣṇa consciousness. If he is not, he should not be accepted. However, Lord Caitanya's causeless mercy is such that He advised all bona fide spiritual masters to speak about Kṛṣṇa consciousness everywhere. Therefore, in the line of Lord Caitanya, even the sannyāsīs can speak about Kṛṣṇa consciousness everywhere, and if someone is seriously inclined to become a disciple, the sannyāsī always accepts him.
The one point is that without increasing the number of disciples, there is no propagation of the cult of Kṛṣṇa consciousness. Therefore, sometimes even at a risk, a sannyāsī in the line of Caitanya Mahāprabhu may accept even a person who is not thoroughly fit to become a disciple. Later on, by the mercy of such a bona fide spiritual master, the disciple is gradually elevated. However, if one increases the number of disciples simply for some prestige or false honor, he will surely fall down in the matter of executing Kṛṣṇa consciousness.
Similarly, a bona fide spiritual master has no business to read many books simply to show his proficiency or to get popularity by lecturing in different places. One should avoid all these things. It is also stated that a sannyāsī should not be enthusiastic about constructing temples. We can see in the life of various ācāryas in the line of Śrī Caitanya Mahāprabhu that they are not very enthusiastic about constructing temples. However, if somebody comes forward to offer some service, the same reluctant ācāryas will encourage the building of costly temples by such servitors. For example, Rūpa Gosvāmī was offered a favor by Mahārāj Mansingh, the commander-in-chief of Emperor Akbar, and Rūpa Gosvāmī instructed him to construct a large temple for Govindajī, which cost vast amounts of money.