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

Adam is the cause of man's material life, but the reality of Christ, that is, the Word of God, is the cause of his spiritual life. It is a life-giving spirit, meaning that all the imperfections imposed by the material life of man are, through the instruction and guidance of that Essence of detachment, transmuted into human perfections. Therefore, Christ was a life-giving spirit and the cause of the spiritual life of all mankind (29:7)

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