…the world of man is supernatural in its relation to the vegetable kingdom, though in reality it is not so. Relatively to the plant, the reality of man, his power of hearing and sight, are all supernatural, and for the plant to comprehend that reality and the nature of the powers of man’s mind is impossible. In like manner for man to comprehend the Divine Essence and the nature of the great Hereafter is in no wise possible. The merciful outpourings of that Divine Essence, however, are vouchsafed unto all beings and it is incumbent upon man to ponder in his heart upon the effusions of the Divine Grace, the soul being counted as one, rather than upon the Divine Essence itself. This is the utmost limit for human understanding.
- ‘Abdu’l-Baha (’Tablet to August Forel’)