"By His practical example, Śrī Caitanya Mahāprabhu has shown us that all the grains of sand must be picked up thoroughly and thrown outside. Śrī Caitanya Mahāprabhu also cleansed the outside of the temple, fearing that the grains of sand would again come within. In this connection, Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura explains that even though one may become free from the desire for fruitive activity, sometimes the subtle desire for fruitive activity again comes into being within the heart. One often thinks of conducting business to improve devotional activity. But the contamination is so strong that it may later develop into misunderstanding, described as kuṭi-nāṭi (faultfinding) and pratiṣṭhāśā (the desire for name and fame and for high position), jīva-hiṁsā (envy of other living entities), niṣiddhācāra (accepting things forbidden in the śāstra), kāma (desire for material gain) and pūjā (hankering for popularity). The word kuṭi-nāṭi means "duplicity." As an example of pratiṣṭhāśā, one may attempt to imitate Śrīla Haridāsa Ṭhākura by living in a solitary place. One's real desire may be for name and fame—in other words, one thinks that fools will accept one to be as good as Haridāsa Ṭhākura just because one lives in a solitary place. These are all material desires. A neophyte devotee is certain to be attacked by other material desires as well, namely desires for women and money. In this way the heart is again filled with dirty things and becomes harder and harder, like that of a materialist. Gradually one desires to become a reputed devotee or an avatāra (incarnation)."
CC Madhya 12.135, Translation and Purport