Based on Chapter 19, what are the true characteristics of the Soul, and how is it distinct from its worldly appearance?

Chapter 19 teaches that the Soul is fundamentally distinct from the body, senses, mind, and life-force. It is described as self-luminous, pure consciousness, changeless, and formless. To illustrate its true nature, the chapter uses the analogy of a crystal that remains pure and free from change, even though it may appear to take on the color of objects placed near it. Similarly, the Soul remains untainted by the actions of Maya. The text clarifies that the ego of "I am the body" is a false bondage, like mistakenly perceiving a snake in a coiled rope.