And He said to me, “My grace is sufficient for you, for My strength is made perfect in weakeness.” Therefore most gladly I will rather boast in my infirmities, that the power of Christ may rest upon me.
2 Corinthians 12:9 (NKJV)
Grace becomes empowerment when we realize that we in our own strength are never asked to carry the burdens of life, but that we are to cast these upon the Lord. This opens us to His power, His might, and His ability flowing through us. Now we are not limited by our own weaknesses because the supernatural power of Christ is resting upon us.