俱舍論記 28.27

28.27

「若一境性至初二三四」者，釋第五、第六句。問：若一境性是靜慮體，依何相立初、二、三、四差別不同？

As for "If one-pointedness of mind... the first, second, third, and fourth": this explains the fifth and sixth lines [of the verse]. Question: If one-pointedness of mind is the intrinsic nature of dhyāna, on what characteristics are the distinct differences of the first, second, third, and fourth established?