Watch Online HD on HDtoday. Prajna is the Sanskrit word for radiant wisdom, and yatra is the word for pilgrimage or spiritual journey. This visually stunning documentary is a cinematic pilgrimage exploring the lost civilization of Angkor in Cambodia, including the largest temple in the world, the magnificent Angkor Wat. The journey continues to sacred sites of the natural world, Hindu Bali, jungles of Java, and discovering Buddhist Borobudur. A John Bush film.