The examples in the Book are helpful, but the concepts are still difficult for a rational mind to understand. Memorizing and debating the material is doable, but an understanding seems to require a shift in perspective.
Matthew 18:3 - And said, Verily I say unto you, Except ye be converted, and become as little children, ye shall not enter into the kingdom of heaven.
Oh!
Like the WARNING not to 'add or subtract from'...?