《吕氏春秋·览·审分览》
身体是用来保藏心的，心是用来保藏智慧的。智慧被深深保藏着，因而实情就不能窥见到啦。
身以盛心，心以盛智，智乎深藏，而实莫得窥乎！
The body is used to preserve the mind, and the mind is used to preserve the spirit. The spirit being thus deeply preserved, the true reality of things cannot be seen.