The word says this; to crucify the flesh, for we are dead, to the flesh, the world and the devil. In my relationship with my personal prays, meditation's and answers, I have never ever heard things with my natural ears. God is a spirit, this is what the word says, those who worship him, must worship him in spirit and in truth. There are times, when the Holy spirit, quickens words, to our spirit, for we are born again of his spirit, not born again of the flesh. He will speak to our spirit, and we know him, and recognize his voice, as the NT says, "My sheep know their Shepard, another they will not listen too. To know him, is to know how he speaks, to the inner man, and yes at times, it could be just as real as a human talking, but, it is not to my earthly ears, but to my spirit. God be praised!