How is the soul described as being both involved in the world and separate from it?

The soul's paradoxical nature is explained in Chapter 19 using the analogy of a crystal. The text states that the Soul appears in this world according to the actions of Maya, yet it remains changeless and untainted. Just as a crystal appears to take on the red, black, or yellow color of an object placed near it, it remains inherently pure, distinct, and free from those colors. Similarly, the Soul, while seemingly involved in the world's activities and appearances, is in its true nature distinct from the body, senses, mind, and life-force. It is described as self-luminous, pure consciousness, and formless.