अपरप्रकृति - aparāprakṛti

The outer world that we experience through the senses [ref]The Essence of the Bhagavad Gita, Swami Kriyananda. Chapter 19, “Knowledge and Wisdom.”[/ref]

According to Swami Kriyananda, aparaprakriti is also Cosmic Delusion, or Satan itself. He defines Satan as the force which pulls us down from whatever level of spiritual evolution we have attained, drawing us into lower states of consciousness. [ref]Paramhansa Yogananda: A Biography, Swami Kriyananda. Chapter 12, “Mt. Washington.”[/ref]