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.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

即胎藏界的中台八葉院。見八葉蓮台條。

陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》

（術語）胎藏界之中臺八葉院也。【參見: 八葉蓮臺】

丁福保《佛學大辭典》