Śakti: the World as Power by John Woodroffe

Śakti in the highest causal sense is God as Mother, and in another sense it is the universe which issues from Her Womb. And what is there which is neither one nor the other? Therefore the Yoginīhṛdaya Tantra thus salutes Her who conceives, bears, produces and thereafter nourishes all worlds: “Obeisance be to Her who is pure Being-Consiousness-Bliss, as Power, who exists in the form of Time and Space and all that is therein, and who is the radiant Illuminatrix in all beings.”