The “holding tanks” for the current dead (or the collective Sheol in the Old Testament) are Hades and Paradise: Hell vs Hades, and Heaven vs Paradise.
Maybe it’s hard to picture heaven on earth, but it’s not hard to picture hell. Humans are great at bringing hell on earth. If you’ve ever seen the movie “Hotel Rwanda,” then you know what hell on earth looks like.
Many Christians today have lost a larger vision told by the Bible.