CC Madhya 4.124
kṣīra-icchā haila, tāhe māne aparādhe
It is advisable that food being offered to the Deity be covered when taken from the kitchen to the Deity room. In that way, others may not see it. Those who are not accustomed to following the advanced regulative devotional principles may desire to eat the food, and that is an offense. Therefore no one should be given a chance to even see it. However, when it is brought before the Deity, it must be uncovered. Seeing the food uncovered before the Deity, Mādhavendra Purī desired to taste a little of it so that he could prepare a similar sweet rice for his Gopāla. Mādhavendra Purī was so strict, however, that he considered this to be an offense. Consequently he left the temple without saying anything to anyone. The paramahaṁsa is therefore called vijita-ṣaḍ-guṇa. He must conquer the six material qualities — kāma, krodha, lobha, moha, matsarya and kṣudhā-tṛṣṇā (lust, anger, greed, illusion, enviousness and hunger and thirst).