Can you explain the three bodies of the soul—gross, subtle, and causal—as detailed in Chapter 50?

Chapter 50 details the three bodies of the soul. The 'subtle' body is formed from the effects of the five un-compounded great elements (Tanmatras), and consists of the pranas, senses, mind, and intellect. The 'gross' body, which knowers call the 'Virat' or universal form, emerges from the compounded (panchikrut) five elements. Finally, the 'causal' body is identified as the ignorance of one's own true form. This causal body, which is the root cause for the gross and subtle bodies, is also known as the 'Unmanifest' (Avyakruta) when it has the reflection of consciousness. This framework helps explain the layers of existence that cover the soul.