The rtambhara tatra prajna sutra explains a state wherein a sadhaka is full of truth and rational essence. This happens when the consciousness resides in a wisdom-like state. Such an illuminated state is pleasurable, saturated with radiance and matured understanding.

rtambhara upholding truth, full of truth, full of intellectual essence
tatra therein
prajna faculty of insight, wisdom

When consciousness dwells in wisdom, a truth-bearing state of direct spiritual perception dawns.

This acquired spiritual enlightenment is filled with unalloyed wisdom, lustrous in truth and reality. This luminosity of the soul manifests, gleaming with full fragrance. Rtambhara prajna is a state of seasoned intelligence or ripened wisdom, companioned with passionate insight.