Chapter 24 mentions people who are 'blind despite having eyes.' What does this metaphor refer to, and what causes this condition?

In Chapter 24, the phrase 'blind despite having eyes' is a metaphor for spiritual ignorance. It describes people who, despite having physical sight, are unable to perceive their own true welfare or spiritual path. The chapter explains that this blindness is caused by an over-identification with the physical body, or 'body-consciousness.' This attachment to the transient body, which has 'no certainty of it for even a moment,' and its momentary pleasures prevents them from understanding deeper, spiritual truths. They are so focused on fleeting desires that they fail to see the eternal reality and the path to their own ultimate well-being.