We find, that all that has been explained to use in truth from the greatness of his perfection which is without measure is only his complete singularity. For when we look with in depth examination at all of the actions which are done under the heavens, we see one path that revolves and continues, and its rest is only in the revelation of this truth. Now we need to understand this singularity, and that which is intended through it, and this is what was commanded to us in the text (Deuteronomy 4:39) "And you shall return to your heart because haShem he is the Lord...", meaning that one needs a settled mind and proper reason in this matter. And I already said, this is a great sea and wide of hands is it, and we need to sail upon it as our souls can be filled: