Some scholars have connected the decline of Angkor with the conversion of the Khmer Empire to Theravada Buddhism following the reign of Jayavarman VII, arguing that this religious transition eroded the Hindu concept of kingship that underpinned the Angkorian civilization. According to Angkor scholar George Coedès, Theravada Buddhism's denial of the ultimate reality of the individual served to sap the vitality of the royal personality cult which had provided the inspiration for the grand monuments of Angkor. The vast expanse of temples required an equally large body of workers to maintain them; at Ta Prohm, a stone carving states that 12,640 people serviced that single temple complex. Not only could the spread of Buddhism have eroded this workforce, but it could have also affected the estimated 300,000 agricultural workers required to feed them all.