The Compendium of Caraka 4.5.16

4.5.16

śuddhasattvasya yā śuddhā satyā buddhiḥ pravartate/
yayā bhinattyatibalaṃ mahāmohamayaṃ tamaḥ//

The pure, true intellect that arises in one whose mind is purified, / by which he pierces the exceedingly mighty darkness composed of great delusion;