Verse No 68
An objection is raised: “If Brahman shines (self-luminous), then how can the phenomenal world also appear?”
The reply: By difference of standpoint (state of knowledge vs ignorance), both (Brahman and the world) may appear.
For the knower, the Self always shines as pure, free from the impurity of ignorance and its effect, the projection of the phenomenal world — hence it is non-dual and non-phenomenal.
For the ignorant, however, the very same Self appears as if always impure, due to delusion.
To illustrate this, a familiar example is given:
Just as a rope appears in two ways —
So too, Brahman, although ever self-luminous, becomes meaningful for the attainment of the highest human goal (puruṣārtha) only when apprehended through the right cognition (akhaṇḍākāra-vṛtti). Otherwise, for the ignorant, it remains unrecognized.
This is like the sun or a lamp: they shine equally, but only one with sight perceives their light, not the blind.