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

As the grace of God is limitless, so too are the perfections of man. If it were possible for the reality of anything to reach the very summit of perfection, then it would become independent of God and the contingent reality would attain to the station of the necessary reality. But every created thing has been assigned a degree which it can in no wise overpass. So he who occupies the degree of servitude, no matter how far he may progress and acquire endless perfections, can never reach the degree of divine Lordship. The same holds true of all other created things. No matter how far a mineral may progress, it can never acquire the power of growth in the mineral kingdom. No matter how far this flower may progress, it can never manifest the power of sensation while it is in the vegetable kingdom. So this silver mineral can never gain sight or hearing; at most it can progress in its own degree and become a perfect mineral, but it cannot acquire the power of growth or sensation and can never become living: It can only progress in its own degree (62:2)

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