We're told that the new heaven and new Earth, where we'll life for eternity, is a place of perpetual light. We're making the case that this permanent physical separation of light from darkness is the purpose of creation.
Everlasting Light
Propitiation
Propitiation is the price paid for our redemption. This was Jesus himself. He lived a sinless life and his sacrifice was sufficient to pay for the sins of the whole world.
Redemption
We've resolved a theory of gravitation with the plan of redemption. It's part of a unified theory of everything. Redemption is a gift of God's grace, it's freely available to all who call upon the name of Jesus Christ.