You have asked the question, "What is the difference between a Mayavadi philosopher and a Krishna Conscious person?'' The answer is that the Mayavadi philosopher has only imperfect knowledge of God, whereas the Krishna Conscious person can understand Krishna fully. The example is given that a person may know about the sunlight, but that does not mean that he knows about the Sun God within the Sun planet. Within the Sun there is a Sun God, named Vivaswan, and his body and the bodies of the other inhabitants are made of fire. It is the heat from these fiery bodies that gives warmth and light to this universe. So if someone knows something about the sunlight, it does not mean that he has knowledge about Vivaswan.
Letter to Yoland, 30 July, 1969