" In the intermediate set of teachings, all phenomena are explained in terms of the three gateways to liberation: emptiness, absence of characteristics, and wishlessness.
The Buddha turned the wheel of Dharma on the absence of characteristics for the benefit of disciples with the potential to follow the Mahāyāna. Self-clinging or the view of self, which is mentioned in the context of the truth of the origin as the root of saṃsāric existence, is here divided in two: clinging to the self of the individual, and clinging to a “self” or identity in phenomena. It is the clinging to a self in phenomena that is taught to be the root of saṃsāric existence.
To teach its antidote, the selflessness of phenomena, in a complete way, in the context of the true path, the profound theme of emptiness is set out in extremely elaborate detail. By taking this to heart through practice, we can overcome all our cognitive obscurations and thereby realize omniscient wisdom and work for the benefit of beings for as long as space exists.
Since we need to train in the boundless activity of the bodhisattvas once we have meditated on emptiness endowed with the supreme of all aspects, all the aspects of the practice of skillful means, such as arousing the supreme mind of bodhicitta, accomplishing infinite gateways to samādhi meditation, the six perfections, four immeasurables, and four means of attraction, are also taught in vast detail. In this way, we are taught to practice without dissociating skillful means from wisdom.
Title: Beyond the ordinary mind: Dzogchen, Rimé, and the Path of Perfect Wisdom: selected works / by Patrul Rinpoche, Jamgön Mipham, and other masters; translated and introduced by Adam Pearcey."