Some describe nirbija samadhi in terms of dualism, as a non-dual state of consciousness. When a yogi enters this state, he/she has transcended all illusions of duality and has seen through all projections of separation.
The experience of nirbija samadhi is, therefore, said to be one where the mind becomes radiant and formless, entirely free from conditioning, projection and attachment. It is a state of spiritual oneness, where the mind entirely dissolves. There is no longer any distinguishing between the known and the knower, subject and object, or the seer and the seen.
Nirbija samadhi can also be described as the highest state of yoga and the embodiment, or end product, of all meditation.