1. Is God against global harmony? When the world was in complete agreement, they started building the Tower of Babel. Part of the reason God disturbed their languages is because He did not want all people to have a united mind.
2. What is the difference between Heaven and the Garden of Eden? If there had been no fall, Adam and Eve would have lived forever. (Hence the guarding of the Tree of Life.) They were in perfect communion with God. The only difference I can think of is marriage. (Jesus specifically says that their will be no marriage in Heaven.)
So I would love to hear your thoughts on these two questions.