a sphere of light
A heaven is a sphere of light in the hereafter that is built up by the radiant light of its inhabitants.
In the books by Jozef Rulof the word heaven is used to connect with the earthly use of the word.
The word heaven therefore means a sphere of light in the hereafter, a spiritual world in which the human being lives on who feels a universal love for all life.
You will find more information in the article ‘spheres of light’.