Some Ans. Questions 2014 by -'Abdu'l-Bahá- 1 Para

Thus, the divinity of God, which is the totality of all perfections, reveals itself in the reality of man- that is, the divine Essence is the sum total of all perfections, and from this station it casts a ray of its splendour upon the human reality. In other words, the Sun of Truth is reflected in this mirror. Thus man is a perfect mirror facing the Sun of Truth and is the seat of its reflection. The splendour of all the divine perfections is manifest in the reality of man, and it is for this reason that he is the vicegerent and apostle of God. If man did not exist, the universe would be without result, for the purpose of existence is the revelation of the divine perfections. We cannot say, then, that there was a time when man was not. At most we can say that there was a time when this earth did not exist, and that at the beginning man was not present upon it (50:4)

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