Shugendō
Shugendō (also spelled Shugendo) can be loosely translated as “path of training to achieve spiritual powers.” Shugendō is an important Kami-Buddha combinatory sect that blends pre-Buddhist mountain worship, Kannabi Shinkō 神奈備信仰 (the idea that mountains are the home of the dead and of agricultural spirits), shamanistic beliefs, animism, ascetic practices, Chinese Yin-Yang mysticism and Taoist magic, and the rituals and spells of Esoteric (Tantric) Buddhism in the hope of achieving magical skills, medical powers, and long life. Practitioners are called Shugenja 修験者 or Shugyōsha 修行者 or Keza 験者 (those who have accumulated power) and Yamabushi 山伏 (those who lie down in the mountain). These various terms are typically translated into English as ascetic monk or mountain priest.
From http://www.onmarkproductions.com/html/shugendou.html
