Therion is a Swedish symphonic metal band founded by Christofer Johnsson in 1987. Originally a death metal group under the name Blitzkrieg, the band later became known for blending heavy metal with orchestral arrangements, choirs, and classical musicians, making them pioneers in the symphonic metal genre. Taking inspiration from a Celtic Frost album, their name reflects their interest in mystical and esoteric themes. Therion’s lyrics draw from a wide range of mythologies, occult traditions, and ancient texts, creating a unique fusion of metal and the mystical.