The word nyam means meditational experience or meditational manifestation. When we practice meditative methods of any kind, experiences occur due to the fact that we are not engaged with duality as intensely. These experiences are valid in as much as they reflect the fact of our engagement in practise. Nyams are not realisation per se, but they partake of a natural movement toward nonduality.Nyams—being unstable—have no enduring characteristics. They are therefore unreliable as indicators of anything beyond the fact that the pattern of dualism has been disrupted.
p215, Entering the Heart of the Sun and Moon Ngakpa Chögyam and Khandro Déchen, Aro Books, 2009, ISBN 978-0-9653948-3-3