James Bernstein. Surprised By Christ (№ 395706)

Heaven is born in our hearts in the present, earthly life, and we can see its reflections. So many of the saints who had to endure terrible suffering, never ceased to rejoice. They felt the warmth and serenity which comes from the Lord. Let's just say physically, they were in a bad place and in bad circumstances, but their spirits were correctly configured.
The reverse is also true. You can live in material comfort and wealth, to have power, glory and to experience longing, to be confused, lonely, angry and tormented by internal contradictions.