The System of the Vedanta according to Badarayana's Brahma-Sutras and Cankara's Commentary c6.s3.t3.3

c6.s3.t3.3

"But the higher is that through which that Imperishable is known: the invisible, intangible, unoriginated, colourless, without eyes and ears, without hands and feet, the eternal, all-pervading, all-present, very subtle, this is the Unchanging which the wise know as the womb of beings. As the spider puts forth [the threads] and draws them back again, as herbs grow up upon the earth, as from a living man the hair on head and body, so from this Imperishable arises all the world."