I don't call it Heaven...but the Other Side...and sometimes Home...
I think it is like what is described in Anthony Borgia's books
''Life in the World Unseen and More in the World Unseen'' found online
http://anthony3741.tripod.com/
Books the movie "What Dreams May Come" was based on...with Robin Williams
and Annabella Sciora
....which is also what the famous medium, Chico Xavier, talks about and
in which a movie was made
''Astral City: A Spiritual Journey''.
http://www.hulu.com/watch/364775 -the entire movie...or
a 2:42 min Official Trailer:
https://search.yahoo.com/yhs/search?hspart=adk&hsimp=yhs-adk_sbnt&p=astral+city&type=appfocus5_em_ff¶m1 =20151120¶m2=d3a326e0-57c3-4bb2-a7b0-233dfa153ce5¶m3=email_0.0.12~US~appfocus5¶ m4=search-bb8~firefox
And what CrystalSong said ...these 2 above depict the 'basics'.
We are limited by imagination...
I mean many people still think of themselves as their bodies!!
Imagine that! With grass under their feet and gravity!..
That's pretty limited!