Types of Darkness

In Yogananda's book, "The Second Coming of Christ: The Resurrection of Christ Within You" Yogananda mentions the two main types of Darkness. Darkness as he defines it is delusion. The two types are:
Maya (Illusion)
Avidya (Ignorance)

Maya is a global or mass hallucination - that we often call "reality."
Avidya gives an individual illusion or ignorance. It's a support for the Ego.

Darkness is a confinement - a limitation.

All aspects of the physical world (Maya) are part of this darkness - including (but not limited to) the light of our Sun. The true Light - is the Spiritual Divine Light of God that is ever shinning - and glimpsed with eyes closed in meditation.