How does ignorance cause the one universal principle, Brahman, to appear as something different?

Chapter 37 explains that a single, universal principle pervades everything from the creator Brahma down to a blade of grass, and this principle is the same here and in the hereafter. This ultimate reality, or Parabrahman, is inherently devoid of worldly qualities. However, for a soul deluded by ignorance, this reality appears distorted. The text states that when this principle is 'combined with adjuncts (upadhis),' it appears as if it were not Brahman. This delusion, rooted in ignorance, creates a false perception of separation and multiplicity, obscuring the true, all-pervading nature of the Self.