origin

 https://www.sacred-texts.com/hin/db/bk09ch02.htm

https://www.google.com/search?q=origin+of+Prakriti+and+Purusha

Lakshmi

 That Mahâdeva is holding the Tris’ûla (the trident) on his arms; His forehead is adorned with beautiful cooling semi-Moon; He has five faces, each face having three eyes; His throat is coloured blue; He has ten arms; His body is white like camphor; He wears a tiger’s skin; His upper garment is of elephant’s skin; and snakes are his holy thread; He is holding the one-half of the body of Gaurî and his neck is adorned with garlands of human skulls. The Goddess Laksmî, the daughter of the ocean, assuming the form of a mare, thus practised severe asceticism in that place of pilgrimage. O King! With a feeling of intense dispassion (Vairâgyam) towards the worldly things, She spent the divine one thousand years in the meditation of Mahâdeva, the God of the Gods. After that period, the Highest Lord Mahâdeva, mounting on His bull, came there with His consort Pârvatî and appeared before the Laksmî Devî, perceptible by his eyes. 

https://www.sacred-texts.com/hin/db/bk06ch18.htm