Xuanzang's contribution to Buddhism in China and cultural exchanges between China and India is enormous. His book "The Tale of the Western Regions of Datang" is not only an important document for us to study Indian history, but also helps India to find back its historical memory, providing historical records for India in archaeology and accurately excavating many important sites. /kloc-In the 20th century, the once thriving Nalanduo Temple was destroyed by a military disaster, and broken walls slept in the ground for more than 600 years. Later, archaeologists in Europe and India.