The main image of this chorale-like supplication to God is light, another is the mountain, a high, solid, place. Moerane chose the text of Leseli La Hao (Your Light) from verses 3-5 of Psalm 43 in the Old Testament ‘Book of Psalms’. He adapted them to the Sesotho language, and in the process changed their meaning slightly, as can be seen when comparing them with the King James Version: https://www.kingjamesbibleonline.org/Psalms-Chapter-43/. He sets the words very effectively at the beginning, for a soloist, who seems to represent the supplicant, singing with, and then blending into, the chorus. There is a free mp3 of the spoken lyrics available when one buys the score, to assist with Sesotho pronunciation.