One should have full faith in this. The mahā-prasāda, the deity form of Govinda, the holy name of Krishna, the brahmanas and the vaiṣṇavas — the śuddha bhaktas, pure devotees — are transcendental. This is a question of faith. One who has any doubts about this will commit offenses and suffer. One must accept these with full faith. Otherwise he will definitely be punished.