avidya

Literally, "non-knowledge," ignorance; the manifestation in man of maya, the cosmic delusion (q.v.). Essentially, avidya is man's ignorance of his divine nature and of the sole reality: Spirit.

There are two manifestations of the darkness of delusion: one is maya, cosmic delusion, "that which measures the Infinite"; and the other is avidya, which means ignorance or individual illusion. (sc p.19)