But the paradise and hell of existence are found in all the worlds of God, whether in this world or in the spiritual heavenly worlds.
(‘Abdu’l-Bahá, Bahá’í World Faith, p. 323)
Heaven and hell are conditions within our own beings.
(Shoghi Effendi, Lights of Guidance, p. 209)
Think ye of love and good fellowship as the delights of heaven, think ye of hostility and hatred as the torments of hell.
(‘Abdu’l-Bahá, Selections from the Writings of ‘Abdu’l-Bahá, p. 244)