大般若波羅蜜多經般若理趣分述讚 2.49

2.49

讚曰：此一法門即是六界成眾生者。四大可知。所言空者，即內身中空界之色。識謂八識。此中但說三種根本，謂色所依但說四大。行動所依說空界，內身無此空界之色不得動故。心所所依但說於識。論其根本故但說六根，成積聚形故說四大，能起分別故說於識。能有往來轉動等業故說空寂不增不減。

Commentary: This one dharma gate is the six elements that constitute a sentient being. The four great elements can be known. What is called 'space' is the form of the space element within the internal body. 'Consciousness' refers to the eight consciousnesses. Here, only three kinds of bases are taught: as the basis of form, only the four great elements are taught. As the basis of movement, the space element is taught, for without this form of the space element within the internal body, movement would be impossible. As the basis of mental factors, only consciousness is taught. Discussing their roots, only the six faculties are mentioned: because they form an accumulated shape, the four great elements are taught; because they can give rise to discrimination, consciousness is taught; and because they have activities such as coming, going, and moving, they are spoken of as empty and quiescent, neither increasing nor decreasing.