III. The Elemental World and the Heaven World. Waking Life, Sleep and Death.

Out of what is the astral body itself born? It is born out of the universal astral organism which weaves through the whole of the cosmos. If you want to envisage, by means of a simile, the relation of the small portion of astral substantiality contained in your astral body to the great astral ocean in which all human beings, animals, plants, minerals, and planets too, are contained and out of which they are born, if you want to envisage the relation of the human astral body to the great astral ocean, think of one drop of a liquid in a glass. The drop derives its existence entirely from the liquid in the glass. Similarly, what is contained in an astral body was once embraced within the astral ocean of the cosmos. It has separated out from this ocean and having passed into an etheric body and a physical body, has become a distinct entity, like the drop of liquid.