Abe no Seimei was an onmyōji, a leading specialist of onmyōdō during the middle of the Heian period in Japan. In addition to his prominence in history, he is a legendary figure in Japanese folklore and has been portrayed in a number of stories and films.
Seimei worked as onmyōji for emperors and the Heian government, advising on the spiritually correct way to deal with issues. He prayed for the well-being of emperors and the government as well as advising on various issues. He was also an astrologer and predicted astrological events. He enjoyed an extremely long life, free from any major illness, which contributed to the popular belief that he had mystical powers.
The Seimei Shrine, located in Kyoto, is a popular shrine dedicated to him. The Abeno train station and district, in Osaka, are sometimes said to be named after him, as it is one of the locations where legends place his birth.