Born Gu Chenghai (谷成海) in Haicheng, Liaoning, Kok Kwong exhibited interest in Buddhism at an early age.

At the age of nine, he left the home life and ordained as a novice monk at Haihui Temple in Shanghai in 1928.

Two years later, he was introduced to Venerable Yuanying, the abbot of Tiantong Temple in Ningbo, where he received the full precepts as well as a new dharma name, Jueguang (Kok Kwong in Cantonese; lit.

In his capacity as a senior monastic, Kok Kwong established monasteries and was appointed abbot and director to many temples in Hong Kong.

As president, he oversaw the establishment of several educational institutions, such as the Chung-Hwa Institute of Buddhist Studies in 1945, the Wong Fung Ling College and the Wong Cheuk Um Primary School in 1956, and the Kok Kwong Secondary School in 1979.