You have your limits. You have more mental capacity than some, and less than others. You have more physical capacity than some, and less than others. This is true of everyone except the single one at the top and at the bottom. Much can be done in both categories by exercise, but still there are limits -- and all are different. It is not important. At his very best and highest, man is still nothing. At worst and lowest, he is still something. What counts eternally is how you use what you have been given, in mental, physical, and circumstantial opportunity. This is your personal stewardship, be it great or small. You will be judged upon it. God requires your most and best, within your limits. This is what love will be eager and anxious to give and still wish it could give more. Do you have this love and zeal for divine service that makes the difference between life and death? It comes with long study and meditation, and prayer. It's not a secret or special gift that some just happen to have. It's something all are COMMANDED to develop, and freely shown how. It is spiritual-mindedness, which is life and peace; and there can be neither life nor peace without it. It is not a matter of sudden and shallow emotional excitement, like orthodox "conversion." It is a deep, steady, consistent learning and growing and transforming, and becoming closer and closer to the Divine Perfection.