Mahabharata 7.144.38

आदित्येन यथा व्याप्तं तमो लोके प्रणश्यतितथा नष्टं तमो घोरं दीपैर्दीप्तैरलंकृतम्

ādityena yathā vyāptaṃ tamo loke praṇaśyatitathā naṣṭaṃ tamo ghoraṃ dīpairdīptairalaṃkṛtam

Our plain-language meaning of this verse is waiting for scholar review.