When a person advances in devotional service, it is natural that many persons will come to him requesting to become disciples and will offer him some material gains. If one is attracted by a large number of disciples offering material conveniences and forgets his duty as a bona fide spiritual master, the growth of the plant will be impeded. Simply by taking advantage of material conveniences one may become addicted to enjoying material comforts.
Other impediments are to desire liberation or material name and fame by discharging devotional service, or to neglect the prohibitions. These prohibitions are mentioned in the authorized scriptures: One should not indulge in illicit sex, intoxication, gambling or eating meat—indeed, one should not eat anything other than kṛṣṇa-prasādam, food offered to Kṛṣṇa. These are the restrictions for one who is attempting to advance in devotional service. If one does not follow these principles strictly, there will be a severe disturbance in the discharge of devotional service.