Logic and Reason
The Visnudutas, like all genuine servants of God, understood everything according to logic and reason. The instructions of Krsna are not meaningless dogma. Religion often gives rise to dogmatism, but the author of Sri Caitanya-caritamrta, Srila Krsnadasa Kaviraja, urges us to try to understand Lord Caitanya and the philosophy of Krsna consciousness according to logic. In other words, do not follow blindly, on the basis of sentiment alone. One who fails to apply logic can easily be misled by unscrupulous persons. For example, some so-called missionaries advertise that man can become God, and they attract millions of sentimental followers. But how is it possible? Where is there evidence of any man becoming God? This false propaganda is not at all logical. One should use his intelligence to understand Krsna consciousness.
However, once we have accepted the philosophy of Krsna consciousness and taken initiation from a bona fide spiritual master, we cannot argue with him. We cannot challenge. To do so would constitute an offense and a fall from spiritual principles.

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