67. These things about heaven being the Grand Man have been set forth because without that knowledge in advance the things about heaven which follow cannot be at all comprehended. Nor without it can one have any clear idea about the form of heaven, the conjunction of the Lord with heaven, the conjunction of heaven with man, the influx of the spiritual world into the natural, or indeed any idea at all about correspondence- subjects to be treated of in order in what now follows. The above has therefore been premised to throw some light on these subjects.