[Vignana]
Science or special knowledge, in traditional terms.
Vignanamaya Kosha is non-physical but related to the physical. Vishesh Gnana or vignana means extraordinary knowledge or knowledge of that which is beyond the sense perceptions. This is the etheric body. It is a transitory body — a transition from the physical to the non-physical. It is neither physical nor non-physical. It is like a link between the two.