Esoteric and Tantric teachings followed the same route into northern China as Buddhism itself, arriving via the Silk Road and Southeast Asian Maritime trade routes sometime during the first half of the 7th century, during the Tang dynasty and received sanction from the emperors of the Tang dynasty. During this time, three great masters came from India to China: Śubhakarasiṃha, Vajrabodhi, and Amoghavajra who translated key texts and founded the "Zhenyan" (真言, "true word", "mantra") tradition. "Zhenyan" was also brought to Japan as Shingon during this period. This tradition focused on tantras like the Mahavairocana tantra, and unlike Tibetan Buddhism, it does not employ the antinomian and radical tantrism of the "Anuttarayoga Tantras."