The Bible talks about seeing in a new dimension. You can read about a man who had an experience where he saw something in a dimension he had never seen before. He had been told that Jesus Christ was an imposter and an enemy.
At the pool of Bethesda, the people were waiting for the moving of the water, but there was no power in the water. That certain man had been lying there beside it for 38 years, unable to get into the waters when they were stirred.
What does it mean when the Bible says: you know not that you are wretched, and miserable, and poor, and blind, and naked? Revelation 3:17. I cannot see how a person can be in such a condition as this and not know it.