成唯識論演祕 2.657

2.657

有義：非說色等是現量境名現所知，若言心等他心智境，如何下說世共了知？他心智境非世知故。又約他心名現所知，眼等應是現所知攝，佛心現量緣眼等故，故知但是世間共了名現知也。

There is an opinion: It does not mean matter and so forth being objects of direct perception (pratyakṣa) is called 'directly known'. If one says mind and so forth are the domain of telepathic cognition (paracitta-jñāna), why does it say below that they are commonly understood by worldly people? The domain of telepathic cognition is not known by the worldly. Moreover, if one calls it 'directly known' in reference to telepathic cognition, the eye and other faculties should also be subsumed under what is directly known, because the Buddha's mind directly perceives and takes the eye and others as objects. Therefore, one knows it merely refers to what is commonly understood by worldly people as being 'directly known'.