As a source of information, the monk Yijing's Record of the Inner Law Sent Home from the South Seas contains ample materials concerning monastic life, from the choosing of a teacher, under whose guidance one becomes a monk, up to the disposal of the personal belongings left by a deceased monk. It depicts such a complete picture of the life of a monk that it is indispensable and invaluable for research into the conditions of Buddhist monasticism in medieval India. It also provides some insights into Chinese monastic life through Yijing's criticism and comparison of the practices of the two regions.