The Gwangmyeong Jinwon (광명진언), also known as the Light Mantra or the Brightness Mantra, can be transliterated and interpreted in English as follows:

Transliteration in English
"Om Amogha Vairocana Mahamudra Mani Padma Jvala Pravartaya Hum"

Word-by-Word Interpretation in English
Om

The sacred syllable representing the universe and the divine essence.
Amogha

"Unfailing," "effective," or "perfect," symbolizing infallible truth and wisdom.
Vairocana

Refers to Vairocana Buddha, the source of all light and ultimate enlightenment.
Mahamudra

"Great seal," symbolizing the ultimate reality or the state of enlightenment.
Mani

"Jewel," representing compassion and the essence of spiritual wealth.
Padma

"Lotus," symbolizing purity and spiritual awakening that arises from difficulties.
Jvala

"Radiance," "flame," or "brightness," referring to the spreading of light and energy.
Pravartaya

"Set into motion," "activate," or "turn," indicating the act of propagating truth and wisdom.
Hum

A closing syllable that represents the transformation of energy and the elimination of obstacles.
Full Meaning in English
The Gwangmyeong Jinwon is a powerful mantra calling upon the light and wisdom of Vairocana Buddha to remove all obstacles, purify the mind, and spread enlightenment and compassion throughout the world. It embodies the transformation of negativity into positive energy and the activation of spiritual clarity.

How to Use It
Chant the mantra in a quiet place, focusing on the meaning of each word.
Visualize a radiant light dispelling darkness and obstacles, filling your heart and surroundings with brightness and peace.
Use it during meditation or as a daily affirmation to align yourself with the energy of light and wisdom.