Chapter 24 mentions that people can be 'blind despite having eyes.' What does the text mean by this, and what is the cause of this blindness?

In Chapter 24, the phrase 'blind despite having eyes' refers to a spiritual blindness. The text explains that this condition affects people who, despite having physical sight, do not understand their own true welfare. The cause of this blindness is identified as the 'strength of their body-consciousness.' This attachment to the physical body and momentary pleasures prevents them from seeing the path to their own spiritual well-being. As the chapter states, people chase the 'juice of a momentary pleasure' even though the body itself is transient and uncertain.