In reading an overview of Hindu Cosmology, I see info about Pradhana:
Pradhana, which has no consciousness or will to act on its own, is initially agitated by a primal desire to create. The different schools of thought differ in understanding about the ultimate source of that desire and what the gunas are mixed with (eternal elements, time, jiva-atmas).
What are the different school perspectives on the ultimate source of that primal desire? Where does the desire come from, what is it made of?