Is there anything like discriminating intellect in Buddhism?

I was watching this Youtube video about 'witnessing self': > 3 Stages in Witnessing Meditation - On the Journey towards Spiritual Enlightenment > > This video describes the three stages in witnessing meditation. It is a technique known as Shakshi Bhav in Vedanta. In it he talks about developing intellect that discriminates between '**subject and object**'. He says discrimination between the '**contents of consciousness**' and '**consciousness or awareness**' has to be cultivated for spiritual growth. I haven't come across any Buddhist term which relates to this. Is this Vipassana? If not whats this in Buddhist terms?