Though the worlds of God be infinite, yet some refer to them as four: the world of time, which hath both a beginning and an end; the world of duration, which hath a beginning but whose end is not apparent; the world of primordial reality, whose beginning is not to be seen but which is known to have an end; and the world of eternity, of which neither the beginning nor the end is visible. Although there are many differing statements as to these points, to recount them in detail would result in weariness.
- Baha’u’llah (‘The Seven Valleys’, 2019 revised translation by the Baha’i World Centre; ‘The Call of the Divine Beloved’)