(Redirected from Three classes)
- the outer category of mind (semdé),
- the inner category of space (longdé), and
- the category of pith instructions (mengak dé).
- Three sections
Oral Teachings Given to the Rigpa Sangha
- Sogyal Rinpoche, Paris, 26-27 June 1982, the 'Seven Stages of the Categories of Mind: Semdé, Longdé and Mengakdé'.
- Sogyal Rinpoche, Les Ages retreat, France, 16 August 1987