was a Japanese ascetic and mystic, traditionally held to be the founder of Shugendà Â, the path of ascetic training practiced by the gyà Âja or yamabushi.
He was banished by the Imperial Court to Izu à Âshima on June 26, 699, but folk tales at least as old as the Nihon Ryà Âiki (c. 800) recount his supernatural powers and exploits.
He is also referred to by the name , , or also under the full name En no Kimi Ozunu, where is his kabane or titular name.
Even historical accounts of his life are intermixed with legends and folklore. According to the chronicle Shoku Nihongi (797 AD), En no Ozunu was banished to the island of Izu à Âshima on June 26, 699:
<blockquote>On hinoto-ushi (sexagenary "fire ox") day [24th day of the 5th month, Mommu 3 (June 26, 699 AD)], En no Kimi Ozunu was banished to Izu no Shima. Ozunu had first lived in Mount Katsuragi and been acclaimed for his sorcery and was the teacher of Outer Junior 5th Rank Lower Grade . Later, [a person (or Hirotari?)] envied his power and accused him of trickery with his weird magic. [The Imperial Court] banished him far [from the Capital]. Rumor says, "Ozunu was able to manipulate demonic spirits, making them draw water and gather firewood. When they disobeyed, he bound them using sorcery."</blockquote>
In spite of this incident, it seems that the Court continued to highly evaluate the herbal knowledge of Ozunu's school, since Vol. 11 of the book also tells that on October 5, Tenpyà  4 (October 28, 732 AD), his student Karakuni no Hirotari was elected as the , the highest position in .
In folk religion, En no Ozunu is traditionally held to be the founder of Shugendà Â, a syncretic religion incorporating aspects of Taoism, Shinto, esoteric Buddhism (especially Shingon Mikkyà  and the Tendai sect) and traditional Japanese shamanism.
En no Gyà Âja was conferred the posthumous title Jinben Daibosatsu (Great Bodhisattva Jinben, ç¥Âå¤Â大è©è©) at a ceremony held in 1799 to commemorate the one-thousandth year of his passing. Authorship of the non-canonical Sutra on the Unlimited Life of the Threefold Body is attributed to En no Gyà Âja. Due to his mythical status as a mountain saint, he was believed to possess many supernatural powers.