Nothing in Nature appears spontaneously. Everything is a transformation of something else. According to Tantra, the essence of mineral is transformed by plants into sap which is then consumed by animals and humans as food. In the body of animals and humans, sap transforms into plasma, flesh, bone, nerves, semen, and blood. Thus all things in Nature are different forms of the same essence. -from The Book of Kali by Seema Mohanty