FARTHER, as the _Sun_ suffers ECLIPSES, and is obscured by the Intervention of the _Moon_; and the _Moon_ again (in like manner) is eclipsed and obscured by the Objection or Interposition of the _Earth_, the _Sun_ always running thro’ the _Ecliptick Line_ in the same Degree, and the Moon in _opposite Degrees_: So BODY and SOUL are subject to their own Impediments and _Eclipses_; sometimes _defending_, and sometimes _offending_ one another; both _sympathizing_ mutually, and _participating_ equally of one another’s _Portion_. As it is evident from the very Words of our _dying_ SAVIOUR, who, by reason of his Human Weakness, broke out into these[12]Words, _My Soul is exceeding sorrowful, even unto Death_: Which _Death_, in the next _Verse_, he, in a manner, deprecates of the FATHER. For though he was not yet insulted, or laid hands upon, yet his whole _Mind_ and _Thoughts_ running upon his approaching _Danger_, he was seiz’d with such Horror and Trepidity, as express’d a _bloody Sweat_, which streamed from his _whole Body_: so that the Acerbity of his _Grief_ must (of consequence) have been communicated to _both Parts_; and beginning in the SOUL, did thence redound into the BODY. HENCE arises a rational and natural _Argument_, that as SOUL and BODY do not only _act_ in and thro’ one another, but also _suffer_ mutually, always _sympathizing_ with each other, and bearing equal _Share_ in the _Troubles_, _Misfortunes_, and _Inquietudes_ of this Life; and that as they _both_ inseparably constitute the MAN: So, by reason of that natural _Sympathy_, and proximous _Affinity_, as the SOUL enjoys _Immortality_, the renew’d BODY (by the Mystery of the RESURRECTION) will be a future _Partaker_ of the _same Reward_; and consequently the _whole Man_ must enjoy _one_ and the _same State_ of _Beatitude_; or _otherways_, as he shall have promerited. Whence I proceed to [Illustration] CHAP. VII. _Of the Formation of the_ EMBRYO. THE _spirituous Substance_ of both SEEDS, by its own generative and active _Qualities_, in a well disposed WOMB, produceth a small _Consistence_ within the Space of _Seven Days_, call’d the GENITURA; which contains three[13] _Bullæ_ (so term’d by _Physicians_) superlatively MINUTE, design’d for the _three Spermatick Members_: The _one_ containing the purer Part of the _Seed_, full of _Vital Spirit_, for the _Heart_; the _other_, the more thick and pinguid Part, full of _Natural Spirit_, for the _Liver_; and the _third_, the more cold and crude Part, full of _Animal Spirit_, for the _Brain_. ACCORDING to[14] _Hippocrates_’s Definition of the GENITURA, it appears the _likest_ of any Thing to a raw immature EGG, inclosing a certain red _Liquor_, with some pale-colour’d _Fibres_, of the finest _Contexture_, not unlike the _Filaments_ of a small _Spider’s Web_, wrap’d up with the said red thick BLOOD in the _Pellicule_.