成唯識論了義燈 5.34

5.34

又身心受，何故五俱名為身受，第六識俱名為心受？答：有二解。一云：身者積聚義，五種色根皆積聚，依彼五根皆名身。二云：身者唯屬身根，餘四依身相從名身，故能依受得名身受。難：五識別依根，相應之受得身名，第六別依意，相應之受標意稱？答：五根皆積聚受，從所依得名身，對色辨於心，第六相應非意受。問：色心以相對六不同，五名身受，身、眼兩相望，眼不齊身立身受？答：身、眼俱色並得名身，對色、心殊六名心受。又受依於身即名身受，受依於意應名意受。且質。答云：六受依於意，依意名意受，五受依眼等，應名眼等受。據門明別，身、心相對，名身心受，不可齊責。

Furthermore, regarding physical and mental sensation, why is that which is concurrent with the five called physical sensation (kāyikī vedanā), while that which is concurrent with the sixth consciousness is called mental sensation (caitasikī vedanā)? Answer: There are two explanations. One says: "body" (kāya) has the meaning of accumulation; the five physical faculties are all accumulations, and depending on those five faculties, they are all called body. The second says: "body" belongs exclusively to the tactile faculty; the other four follow in designation depending on the body and are called body, hence the sensation relying on them receives the name physical sensation. Objection: The five consciousnesses rely individually on faculties, and their associated sensations receive the name physical; the sixth consciousness relies individually on the manas, so shouldn't its associated sensation bear the designation of manas? Answer: The five faculties are all accumulations, and sensation receives the name physical from its support; in contrast to physical form, mind is distinguished, so that which is associated with the sixth is not called manas-sensation. Question: Physical form and mind are contrasted, so the six are different, and the five are called physical sensation; comparing the body and the eye, does the eye not rank equally with the body in establishing physical sensation? Answer: Both body and eye are material form and both receive the name body; contrasting material form with mind, the sixth is called mental sensation. Furthermore, if sensation relying on the body is called physical sensation, sensation relying on the manas should be called manas-sensation. As a tentative question, the answer is: if the sixth sensation relies on the manas and is called manas-sensation from the manas, then the five sensations relying on the eye and so forth should be called eye-sensation, etc. Clarifying the distinction according to the category: material form and mind are contrasted, hence they are called physical and mental sensations; one cannot demand uniform equivalence.