Through the mastery of that three-part process of samyama, the light of knowledge, transcendental insight, or higher consciousness (prajna) dawns, illumines, flashes, or is visible.
(tad jayat prajna lokah)
tad = of that
jayat = achievement, mastery
prajna = light of knowledge, transcendental insight, higher consciousness
lokah = flashes, illumines, becomes visible, dawns
Patanjali's yoga sutras 
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