The piano cycles played by Herbert Henck on this double CD - Hymns from a Great Temple, Dances and Chants of the Seids (accompanied by Trilok Gurtu on the daff), Seekers of the Truth, and Melody for the Enneagram - are a collaboration between the mystic Georges Ivanovich Gurdjieff and Thomas de Hartmann. It is a unique document of cultural history and spirituality.