But Seeds themselves do lie in perpetual shades, either under the leaf, or shut up in coverings; and such as lye barest, have their husks, skins, and pulps about them, wherein the nebbe and generative particle lyeth moist and secured from the injury of Aire and Sunne. Darknesse and light hold interchangeable dominions, and alternately rule the seminal state of things. Light unto _Pluto_[166] is darknesse unto _Jupiter_. Legions of seminall _Idæa's_ lye in their second Chaos and _Orcus_ of _Hippocrates_; till putting on the habits of their forms, they shew themselves upon the stage of the world, and open dominion of _Jove_. They that held the Stars of heaven were but rayes and flashing glimpses of the Empyreall light, through holes and perforations of the upper heaven, took of the natural shadows of stars, while according to better discovery the poor Inhabitants of the Moon[167] have but a polary life, and must passe half their dayes in the shadow of that Luminary. [166] Lux orco, tenebræ Jovi, tenebræ orco, lux Jovi. _Hippocr._ de diæta. [167] S. Hevelii Selenographia. Light that makes things seen, makes some things invisible, were it not for darknesse and the shadow of the earth, the noblest part of the Creation had remained unseen, and the Stars in heaven as invisible as on the fourth day, when they were created above the Horizon, with the Sun, or there was not an eye to behold them. The greatest mystery of Religion is expressed by adumbration, and in the noblest part of Jewish Types, we finde the Cherubims shadowing the Mercy-seat: Life it self is but the shadow of death, and souls departed but the shadows of the living: All things fall under this name. The Sunne it self is but the dark _simulachrum_, and light but the shadow of God.