Complex sentence: It is the birthplace of the Reiki practice, and is said to be the home of Sōjōbō, King of the Tengu, who taught swordsmanship to Minamoto no Yoshitsune.
Split into simpler sentences: It is the birthplace of the Reiki practice, and is said to be the home of Sōjōbō, King of the Tengu. It was the Tengu who taught swordsmanship to Minamoto no Yoshitsune.