The Divine Reality is Unthinkable, Limitless, Eternal, Immortal and Invisible. The world of creation is bound by natural law, finite and mortal. The Infinite Reality cannot be said to ascend or descend. It is beyond the understanding of man, and cannot be described in terms which apply to the phenomenal sphere of the created world... An intermediary is needed to bring two extremes into relation with each other. Riches and poverty, plenty and need: without an intermediary power there could be no relation between these pairs of opposites. So we can say there must be a Mediator between God and Man, and this is none other than the Holy Spirit, which brings the created earth into relation with the “Unthinkable One,” the Divine Reality.
—‘Abdu’l-Bahá, Paris Talks
