What's the difference between the 'qualified' Brahman and the pure, target Brahman?

The text in Chapter 50 makes a clear distinction between two aspects of Brahman. The pure, target Brahman is described as 'extremely pure and clean' and the form of 'pure Consciousness' (Chinmatra). This is the ultimate, unconditioned reality. In contrast, the 'qualified' (shabal) Brahman is the one that became associated with Avidya, or ignorance. This association made Brahman expressible, giving it the name 'Sat' (Existence) and allowing it to be grasped by the intellect and take form through 'Omkar'. Chapter 50 explicitly states that the target Brahman is separate and 'entirely different from the expressed' one, urging that the veils of ignorance covering the pure Brahman should be moved aside.