'Grace', is the most powerful word in the world after 'Jesus'. Grace is simply God's power that teaches us how to win. Salvation grace and empowerment grace is only given through the manifestations of the Spirit...
We must understand that where there is no feat to achieve, where there is no work to be done, where man is not trying to attain a height, or when God is not on a project through man, grace is not needed and it is not made available. Therefore grace complements the effort to achieve a task at hand.