俱舍論記 29.56

29.56

「後二遍處至四蘊為境」者，釋下兩句。後二遍處，如次空、識二淨無色為其自性。前八正治於貪，故自性以無貪為體。後二但觀空、識，故以無色為其自性。各緣自地四蘊為境，假想思惟作無邊空解、作無邊識解。又《正理》云「何故唯十得遍處名？此上更無遍行相故。唯第四定、空、識無邊，可得說有無邊行相。」

"The last two totalities [...] take the four aggregates as their objective field": this explains the lower two lines. The last two totalities, in order, have the two pure formless [absorptions] of [infinite] space and [infinite] consciousness as their intrinsic nature. Because the first eight directly remedy greed, their intrinsic nature takes non-greed as its substance. The last two contemplate only space and consciousness, and thus have the formless as their intrinsic nature. Each takes the four aggregates of its own stage as its objective field, and through imaginative contemplation forms the comprehension of boundless space or the comprehension of boundless consciousness. Furthermore, the Nyāyānusāra says: "Why are only ten called 'totalities'? Because above these there is no further aspect of all-pervading activity. Only in the fourth dhyāna, [infinite] space, and [infinite] consciousness can it be said that there is an aspect of boundless activity."