八葉院
Từ Điển Thuật Ngữ Phật Học Hán Ngữ
is the central court of the 胎藏界with Vairocana as its central figure, also termed 八葉蓮臺 or 八葉座 An esoteric name for the heart is the eight-petal fleshly heart, and being the seat of meditation it gives rise to the term eight-leaf lotus meditation.