To live blind to the finished work of Christ, is to live blind to the heavenly realm.

Starve believers of the Heavenly Gospel (The Good News of what God has provided for them) and feed them instead with an earthly gospel (good advice on what they need to provide for Him) and they will lose their ability to see past their natural circumstances. They will lose the ability to see in the dark. Right now, this world needs the Church to be seeing in the dark.