What is the difference between oneness and duality as explained in Chapter 14, and what are the consequences of each belief?

Chapter 14 presents a deep philosophical teaching on oneness and duality. It clarifies that duality, the intellect that establishes a difference between 'self' and 'other', is pure ignorance and leads to the perpetual cycle of birth and death. Conversely, oneness is the understanding that the same divine Essence in your own body is present throughout the entire universe. According to the text, surrendering to this Essence and turning away from the ignorance of duality is the path to liberation. Attaining this state of non-duality brings firmness to the mind and allows one to realize their true nature.