It is a mistake to identify the Mother with the lower Prakriti and its mechanism of forces. Prakriti here is a mechanism only which has been put forth for the working of the evolutionary Ignorance. As the ignorant mental, vital or physical being is not itself the Divine, although it comes from the Divine―so the mechanism of Prakriti is not the Divine Mother. No doubt something of her is there in and behind this mechanism maintaining it for the evolutionary purpose; but what she is in herself is not a Shakti of Avidya, but the Divine Consciousness, Power, Light, Para Prakriti to whom we turn for release and the divine fulfilment.
Ref : The Mother with Letters on The Mother