In 747, a Buddhist saint, Padmasambhava (known in Bhutan as Guru Rimpoche and sometimes referred to as the Second Buddha), came to Bhutan from India at the invitation of one of the numerous local kings. After reportedly subduing eight classes of demons and converting the king, Guru Rimpoche moved on to Tibet. Upon his return from Tibet, he oversaw the construction of new monasteries in the Paro Valley and set up his headquarters in Bumthang. According to tradition, he founded the Nyingmapa sect—also known as the "old sect" or Red Hat sect—of Mahayana Buddhism, which became for a time the dominant religion of Bhutan. Guru Rimpoche plays a great historical and religious role as the national patron saint who revealed the tantras—manuals describing forms of devotion to natural energy—to Bhutan. Following the guru's sojourn, Indian influence played a temporary role until increasing Tibetan migrations brought new cultural and religious contributions.