Yes, there are. Some fictional books like 'Heaven is for Real' provide imaginative and thought-provoking depictions of heaven. Another one could be 'The Five People You Meet in Heaven' by Mitch Albom.
Sure, there are. Many authors have explored the concept of heaven in their fictional works. For example, 'The Great Divorce' by C.S. Lewis offers a unique perspective on heaven.
Oh, definitely! There are quite a few. 'Revelation Space' by Alastair Reynolds has elements related to concepts of heaven. 'The Left Hand of Darkness' by Ursula K. Le Guin also touches on themes that could be associated with a heavenly realm in a certain way.