CHAP. III. Where, and how the Vitals do perform their chief Operation.
NOw these Spirits, as Authors have observed, are the Master-Workmen in the Body, and as the upper Wheel which turneth about the lower Wheels in the Body: therefore whatso∣ever is healthful, and refreshing to the Spirits, works powerfully good effects in the Body, and that speedily and suddainly, as the Author saith, Vapours and Affections work compendiously upon the Spirits. It is well known that the Almighty hath placed in the World all things for the use of Mankind, and nothing in vain; it was appointed by God that Mans Body should receive Nourishment by the Fruits of the Earth, what is a greater Earth∣ly Blessing than perfect Health of Body? Some say, Valetudo est summum Bonum, Health is the chiefest Good.
First, To shew you how this Wheel or Vital Spirit doth work for or against us; first for us, viz. for Health of Body. First, good Nourishment causeth Health. Secondly, good Air will