Those souls are strong which are chosen by our Lord to do good to others; still, this their strength is not their own. When our Lord brings a soul on to this state, He communicates to it of His greatest secrets by degrees. True revelations--the great gifts and visions--come by ecstasies, all tending to make the soul humble and strong, to make it despise the things of this world, and have a clearer knowledge of the greatness of the reward which our Lord has prepared for those who serve him.
May it please His Majesty that the great munificence with which He hath dealt with me, miserable sinner that I am, may have some weight with those who shall read this, so that they may be strong and courageous enough to give up everything utterly for God. If His Majesty repays us so abundantly, that even in this life the reward and gain of those who serve Him become visible, what will it be in the next?
-The Life of St Tersesa
St. Teresa rocks.