God reveals Himself through scripture; speculation based on imperfect senses cannot unveil divine truth.Listen — Srila Prabhupada Uvaca
Hayagrīva: These are notations on David Hume. "Abstract, abstract objects, relations, space, matter and time," are all considered by Hume to be, "Mind-dependent perceptions." In other words, perceptions are all there is. He rejects revealed religion, that is, the religion of the stras and embraces
Natural Religion. That is, a religion wherein the existence of God can be proved or even shown to be probable by argument and reason. According to Hume we really know nothing of God, for at the most we can only know are peoples' ideas of God, and these are but perceptions. It would thus seem that it is impossible to know God according to Hume's Natural Religion because the senses are admittedly imperfect, and these are the only instruments of certainty Hume admits in his Natural Religion.
Prabhupāda: What is that Natural Religion?
Hayagrīva: Well, he says, "The self is nothing but a bundle or collection of different perceptions which succeed each other with inconceivable rapidity and are in perpetual flux and movement." So he says there's nothing, nothing but perception. He rejects revealed scriptures as such. But he says, "The heavens and the earth join in the same testimony. The whole course of nature raises one hymn to the praises of its creator. I have found a Deity and here I stop my inquiry. Let those go further who are wiser or more enterprising."
Prabhupāda: First point is that our senses are imperfect. That is admitted. And God is perception. But whether he believes actually in the existence of God?
Hayagrīva: He believes in the existence of God.
Prabhupāda: And what is his perception of God? If he believes in God, then he must give some idea what is God.