Darkness is lack of light as sin is lack of love. It has no unique properties of its own. It is an example of the “scarcity” belief, from which only error can proceed. Truth is always abundant.
T-1.IV.3:1-4 A Course in Miracles . Foundation for Inner Peace.
Darkness is a metaphor for scarcity, for lack. The Course defines “sin” as a lack of love. The idea that there is a lack of Love is an error in perception with the focus being on the world of the ego instead of the world of Spirit. The world of the ego is based on conditional love where there is often a lack of love which is scarce as compared to the world of Spirit which is based on Unconditional Love where the truth is that love is always abundant.
The Universalists taught that God’s love is unconditional while the Calvinists taught the opposite, that God’s love is judgmental and withheld and used as a reward and a punishment.
In Alcoholic Anonymous it is suggested, in step eleven, that we improve our conscious contact with God to experience God’s unconditional love.
In Unitarian Universalism it is a foundation of faith that God’s love for God’s creation is unconditional. However, what human beings have created leaves a lot to be desired because human beings, pursuing the desires of their egos, are on the wrong track.
Today, we refocus our perception from the darkness of the world of the ego to the light of the world of Spirit, Unconditional Love.