Situated in Bagan, an ancient city in central Myanmar (Burma), the Lokahteikpan temple is well-known for its multicolored murals on the inner walls. The main theme of the murals, which appears to have been created in the early 12th century, is related to Buddhism, displaying various scenes of the historical Buddha’s life, the stories of previous lives of the Buddha, called Jataka tales, and twenty-eight Buddhas. It is worth noting that detailed scenes on the sermon on Mount Meru from the life story of the Buddha were depicted at murals on the eastern wall of the temple. At the center and top of the eastern wall, Sakyamuni Buddha preaching on Mt. Meru at Tavatimsa (Trāyastriṃśa) and the heavenly world were depicted, while below the Buddha is ascending upward to Tavatimsa and descends after the sermon. Illustrated at the bottom of the wall are scenes from the dīpaṁkara jātaka and the Ratana-sutta, a Buddhist discourse found in the Pali Canon. It seems that the murals on the eastern wall of the temple faithfully convey the Buddhist stories and teachings in the scenes, while they were intended to strengthen the significance of the Bagan king as king of the Law. Each scene visualizes the idea that a Bagan king is a being who has returned to earth from heaven and will bring prosperity and peace to the world by identifying the king with the Buddha. The idea is indicated in myths and legends from the Bagan period, which have been passed down through several stone inscriptions. The murals on the eastern wall at the Lokahteikpan temple is a visual rhetoric of the political legitimacy and authority of the Bagan king, and it was implemented by exhibiting religious and transcendent aspects of the Buddha and connecting the king to the Buddha.