諸經要集 13.18

13.18

又三昧經云。說身內火界漸增。水界漸微。是故伽羅邏稠漸堅。乃至肉團。眾生由此薄福。從小至大皆受其苦。又禪祕要經云。人身三分。臍為中原。頭為殿堂。額為天門。

Furthermore, the *Samādhi Sūtra* says: It is said that within the body, the fire element gradually increases and the water element gradually diminishes; therefore, the *kalala* gradually thickens and solidifies, up to becoming a lump of flesh. Sentient beings, due to their slight merit, suffer from youth to maturity. Furthermore, the *Chan miyao jing* says: 'The human body has three divisions: the navel is the central plain, the head is the palace hall, and the forehead is the celestial gate.'