瑜伽師地論略纂 5.100

5.100

一分、具分修中，文有二：初別釋二修、後釋定難。初一分修，思光明相，如初解脫，思惟色相，如第二解脫；具思惟二，如淨解脫未成滿時。

Within the cultivation of a single part and the cultivation of all parts, there are two sections in the text: first, separately explaining the two cultivations; second, explaining the obstacles to concentration. First, as for the cultivation of a single part: contemplating the appearance of light is like the first liberation; contemplating the appearance of form is like the second liberation; contemplating both fully is like the pure liberation when not yet perfected.