Guru Rinpoche
Whether you meditate on emptiness or anything else, it is mistaken meditation practice unless it becomes an effective remedy against disturbing emotions (mental afflictions) and ordinariness. Something that does not counteract the disturbing emotions and ordinariness is a cause for falling into samsaric existence. If any teaching you study, reflect upon, or expound becomes an effective remedy against your disturbing emotions as well as an aid for allowing the pure Dharma to take birth in your being, then that is called a Mahayana teaching and is unmistaken. No matter how much you may be acclaimed as learned in study, exposition, and meditation, if your intention is only the eight worldly concerns, your activity is called a black Dharma practice.
