A method of self-enquiry
pioneered by Douglas Harding

Non-Attachment

If our mind dwells in limpid awareness, with no thought of past or future, without being attracted by external objects or occupied by mental constructions, it will dwell in primordial simplicity. In this state, there is no need for the iron hand of forced vigilance to immobilize our thoughts. "Buddhahood," it is said, "is the natural simplicity of the mind." Dilgo Khyentse Rinpoche