And that I may further declare what is the Essence, Matter and Form of the Spirit of _Mercury_, I say, that its Essence is blessed, its Matter spiritual and its form earthly, which yet must be understood by an incomprehensible way; these are indeed harsh Expressions, many will think, thy Proposals are all vain, strange Effusions, raising wonderful Imaginations, and true it is that they are strange, and require strange people to understand these Sayings; it is not written for Peasants, how they should grease Cart-wheels, nor is it written unto those who have no knowledge of the Art, though they be never so learned, or think themselves so; for I only account them Learned, who next unto Gods Word, learn to know Earthly things, which must be pondered and judged by the Understanding, founded upon a true Knowledge, to distinguish Light from Darkness, who chuse that which is good, and reject the evil. It is needless for you to know what the beginning of this Spirit of _Mercury_ requires, because it can in no wise help nor advantage you, only take notice of this, that its beginning is supernatural, out of the Celestial, Sydereal and Elementary, bestowed on it from the beginning of the first Creation, that it may enter further into an Earthly Substance. But because this is necessary which hath been declared to you, leave the Celestial to the Soul, apprehend it by Faith, and let the Sydereal likewise alone, because these Sydereal Impressions are invisible and intangible, the Elements have already brought forth the Spirit perfect into the world by the Nutriment, therefore let that alone likewise; for man cannot make the Elements, but only the Creator, and remain by thy made Spirit which is already formal and unformal, tangible and intangible, and yet is presented visibly. So have you enough of the first Matter, out of which all Metals and Minerals grow, and is one only thing, and such a matter which unites it self with the _Sulphur_ in the following Chapter, and enters into a Coagulation with the _Salt_ of the fifth Chapter, that it may be one Body, and a perfect Medicine of all Metals, not only to bring forth in the Earth at the beginning, as in the great World, but also by help of the vaporous Body to transmute and change, together with the augmentation in the lesser World: Let not this seem strange to you, seeing the Most High hath permitted, and Nature undertaken it.