Know that Prakriti [nature] and Purusha [soul] are without beginning. Know that all the modifications and gunas [qualities of nature] are born of Prakriti. Prakriti is described as the cause in the creation of effects from causes. – Bhagavad Gita.
Mahatma Gandhi: God is described as having two aspects. Under one aspect we should know Him as Prakriti and under the other as Purusha. Prakriti is the cause of creation of karya, anything done under compulsion of desires, and karan, the desires. Purusha is the cause of experience of happiness and misery.