Rāmānujaon Brahma Sūtra 2.1.20

As the one air, according as it undergoes in the body different modifications, acquires a new name, new characteristics, and new functions, being then called prâna, apâna, and so on; thus the one Brahman becomes the world, with its manifold moving and non-moving beings.—The non-difference of the world from Brahman, the highest cause, is thus fully established. Here terminates the 'ârambhana' adhikarana.