Biblical: light: 1) physical light: 'od de'i gzi brjid/ the light's brilliance (Acts 22:11), mar me'i 'od/ the light of a lamp (Rev. 18:23); 2) light in figurative senses: dkon mchog ni 'od lags/ God is light (1 Jn. 1:5), 'od de mun pa'i nang du shar/ the light shines in the darkness (Jn. 1:5), khyod tsho 'jig rten gyi 'od yin/ you are the light of the world (Mt. 5:14), nam mkha' nas 'od cig a light from heaven (Acts 9:3), phrin bzang gi 'od/ the light of the gospel (2 Cor. 4:4), 'od kyi pho nya/ angel of light (2 Cor. 11:14); 3) 'od gsal/ [lit. clear light] is used as a metaphor for spiritual understanding: bden pa'i 'od gsal/ the true light (Jn. 1:9), 'od gsal du gyur pa'i rjes su/ after [you] received the light (Heb. 10:32).
Buddhist: 1) Light is also a frequent metaphor for knowledge and understanding in Bsm. It is often associated with gods and boddhisattvas, e.g. in the third, fourth, and tenth of the ten boddhisattva grounds: 'od byed pa/ "illuminating", 'od 'phro ba/ "radiant", kun tu 'od/ "omnipresent light" (KBT 66), snying rje'i mtsho mo 'od kyis khengs/ the sea of compassion, full of light (KPU 2); 2) 'od gsal/ or "clear light" is a type of consciousness employed in advanced tantric meditation (TRI 244) and a common name.