Like the Cherokee Sequoyah of the early 19th century in Indian Territory (now United States), Shong Lue Yang is one of the few people from a pre-literate society known in history to have independently created an effective writing system.

Beginning in 1959, he reportedly had a series of divine revelations, during which he was taught the Pahawh script by a set of male twins.

He believed that the groups who accepted the writing system would flourish and escape the hardships of the period that resulted in the Laotian Civil War.

Afterward, Yang assumed the title of "Savior of the Common People" (Theej Kaj Pej Xeem), and began teaching the script and his message of redemption across Laos.

Following initial successes, including the building of a school in the village of Fi Kha, Yang was targeted by Viet Cong forces for his association with General Vang Pao and his troops.