The human is always trying to be more, transcend, go beyond, and question. According to Kierkegaard, you are finally able to be yourself. Abraham had infinite resignation. On his own he does nothing, but by acknowledging what he cannot do, God gives Issac back. By faith Abraham did not renounce his claim upon Isaac, but by faith he got Isaac.
Reason never produces a decisive answer.
Passion produces action and defines the Self. Kierkegaard believed that the furthest a human being can go is passionate infinite resignation. The greatest danger for a child, where religion is concerned, is not that his father should be an atheist or even a hypocrite. No, the danger lies in his being a pious Godfearing man, and yet who nonetheless has deep in his soul an unrest and discontent which neither piety nor the fear of God can calm. The essence of pleasure does not lie in the thing enjoyed, but in our attitude to it.