Distinguishing Phenomena and Pure Being, Kagyu Samye Ling 1990 ཆོས་དང་ཆོས་ཉིད་རྣམ་པར་འབྱེད་པ།

34. The introduction to practicing wisdom correctly
Entails the following four specific aspects:
Practice involving something to focus on;
Practice involving nothing to focus on;
Practice involving no subject to focus on;
Practice whose focus is nothing to focus on.

35. The defining characteristics here encountered
Should be known to consist of the following three aspects,

36. Since one effect is repose in pure being,
Which means to actually live in pure being,
The non-dualistic and inexpressible;