The text describes the Self as 'Unqualified' (Nirguna). What does this mean, and what common misconception should be avoided?

The 'Unqualified' or Nirguna Self is described as being utterly beyond attributes and limitations. According to Chapter 37, the Self is devoid of all specific qualities, existing beyond old age, birth, and death. It is eternal, all-pervading like the sky, beginningless, indivisible, and changeless. It is without sound, form, odor, or taste. However, a crucial warning is given: one should not mistake this 'Unqualified' state for being invisible, non-existent, or a 'void' out of ignorance. The text explicitly advises to drive away this ignorance through knowledge and to never dismiss this ultimate reality as mere nothingness.