Hideyoshi deeply venerated Chikubushima and visited by boat in 1588 to worship the goddess. The Karamon gate (National Treasure), said to have been relocated from his Fushimi or Osaka Castle, still adorns the island as a masterpiece of Momoyama architecture. For Hideyoshi, Chikubushima was a sacred site symbolizing divine sanction for his rule over Lake Biwa and Japan.