大方廣佛華嚴經隨疏演義鈔 61.84

61.84

疏「四有四心學三昧行」者，異後得定。以略釋止者，故《唯識》釋睡眠云「昧略為性，略揀寤時，昧揀定中。定中是略而不昧故，繫緣一境即是略義。略非略中，略心為得，非略為失。散非散中，散則為失，非散為得。」

Regarding the commentary's 'Fourth, there are four states of mind learning the practice of samādhi,' this differs from the subsequent attainment of concentration. Explaining calm abiding (śamatha) in terms of abbreviation, the Vijñaptimātra says in explaining sleep: 'Taking dullness and abbreviation as its nature; abbreviation distinguishes it from waking states, dullness distinguishes it from concentration. In concentration, it is abbreviated but not dull; thus tying the cognitive object to a single object is the meaning of abbreviation. Between abbreviated and non-abbreviated, the abbreviated mind is gain, and the non-abbreviated is loss. Between distracted and non-distracted, distraction is loss, and non-distraction is gain.'